A family is getting a doghouse for their dog. The doghouse is proportional to their own house, which is 115 feet long and 65 feet wide. The scale is 0.04. What is the length of the doghouse?

115 * 0.04 = 4.6 feet

To find the length of the doghouse, we need to use the provided scale of 0.04 and apply it to the length of the family's house.

First, multiply the length of the family's house by the scale:
115 feet * 0.04 = 4.6 feet

Therefore, the length of the doghouse is 4.6 feet.