Finding the Fourth Proportional to 94,115.13, 129,878.98 and 55,882.31
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Solution
The fourth proportional to 94,115.13, 129,878.98 and 55,882.31 is: 77,117.65
Step by Step Solution
- Step 1: Write the proportion equation
94,115.13 : 129,878.98 = 55,882.31 : x - Step 2: Convert to fraction form
94,115.13/129,878.98 = 55,882.31/x - Step 3: Cross multiply
94,115.13x = 129,878.98 × 55,882.31 - Step 4: Simplify right side
94,115.13x = 7,257,937,143.43 - Step 5: Solve for x
x = 7,257,937,143.43/94,115.13 - Step 6: Final answer
x = 77,117.65
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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.