Finding the Fourth Proportional to 86,068.48, 129,121.08 and 29,910.28
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Solution
The fourth proportional to 86,068.48, 129,121.08 and 29,910.28 is: 44,871.80
Step by Step Solution
- Step 1: Write the proportion equation
86,068.48 : 129,121.08 = 29,910.28 : x - Step 2: Convert to fraction form
86,068.48/129,121.08 = 29,910.28/x - Step 3: Cross multiply
86,068.48x = 129,121.08 × 29,910.28 - Step 4: Simplify right side
86,068.48x = 3,862,047,656.70 - Step 5: Solve for x
x = 3,862,047,656.70/86,068.48 - Step 6: Final answer
x = 44,871.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.