Finding the Fourth Proportional to 93,916.11, 129,563.51 and 62,129.28
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Solution
The fourth proportional to 93,916.11, 129,563.51 and 62,129.28 is: 85,711.46
Step by Step Solution
- Step 1: Write the proportion equation
93,916.11 : 129,563.51 = 62,129.28 : x - Step 2: Convert to fraction form
93,916.11/129,563.51 = 62,129.28/x - Step 3: Cross multiply
93,916.11x = 129,563.51 × 62,129.28 - Step 4: Simplify right side
93,916.11x = 8,049,687,279.93 - Step 5: Solve for x
x = 8,049,687,279.93/93,916.11 - Step 6: Final answer
x = 85,711.46
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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.