This question on math and needs to be written a proportion

Answer:
g = 3
Step-by-step explanation:
miles / gallon = miles / gallon
104 / 4 = 78 / g
cross-multiply to solve for 'g':
78(4) = 104g
312 = 104g
312/104 = g
3 = g
Answer:
104/4 78/g
Step-by-step explanation
You need to find you y value, place it on top of your fraction, then find your x value to place on bottom, thats on your first column row which will mean its 104 miles ran and 4 gallons used, thats trip 1. You need to do the same for trip #2 and then solve your proportion to find the answer. proportion: \frac{104}{4} \frac{78{g}