Allow field to be populated dynamically

I am creating a form that allows a user to select their business category. Once they select their category, they can select many different options related to that category. Here is my issue.

1) A user fills out the for and selects the business category "Automotive"

2) They are next faced with a series of drop down menus allowing them to select different promotional options. The pricing for each option is dependent on the category.

Instead of having them select their category for each option, is it possible for me to pass the industry they selected onto the next field and if they select that they want to include that option, the price is automatically displayed without them having to select their industry again?

I have played with this and cannot figure it out. I tried passing the parameter name but not entirely sure how this works. Where is this set? I have searched the forums and cannot find an answer.

If someone could list this for me, I would really appreciate it. A step by step would be great!

Here are some additional details:

Question 1 - Choose Your Industry

Automotive
Children
Enertainment

2) Would You like to add a featured Listing?

Yes
No

IF YES

Please Select Industry Category

Automotive - $10
Children - $15
Enertainment - $25

3) Would You Like A Bold Listing?

Yes
No

IF YES

Please Select Industry Category

Automotive - $3
Children - $5
Enertainment - $2

What I want to do is remove the additional step of having them select their industry for each option. I want their industry to carry over so it only displays the industry they have selected in Step 1. This way, I can just ask them if they want the option and the price will be added. We have over 10 different options available for them o choose.