Respuesta :

We need to solve for "g" in the proportion:

45/g = 5/1

we start by cross-multiplying since the inknown "g"is in the denominator:

45 * 1 = 5 * g

operate on the left

45 = 5 * g

divide bothe sides by "5" to isolate "g"

45 / 5 = g

Therefore g = 9