Finding the Fourth Proportional to 93,578.36, 129,101.51 and 57,706.09
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Solution
The fourth proportional to 93,578.36, 129,101.51 and 57,706.09 is: 79,611.82
Step by Step Solution
- Step 1: Write the proportion equation
93,578.36 : 129,101.51 = 57,706.09 : x - Step 2: Convert to fraction form
93,578.36/129,101.51 = 57,706.09/x - Step 3: Cross multiply
93,578.36x = 129,101.51 × 57,706.09 - Step 4: Simplify right side
93,578.36x = 7,449,943,176.71 - Step 5: Solve for x
x = 7,449,943,176.71/93,578.36 - Step 6: Final answer
x = 79,611.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.