Finding the Fourth Proportional to 86,617.38, 129,930.99 and 24,292.74
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Solution
The fourth proportional to 86,617.38, 129,930.99 and 24,292.74 is: 36,440.49
Step by Step Solution
- Step 1: Write the proportion equation
86,617.38 : 129,930.99 = 24,292.74 : x - Step 2: Convert to fraction form
86,617.38/129,930.99 = 24,292.74/x - Step 3: Cross multiply
86,617.38x = 129,930.99 × 24,292.74 - Step 4: Simplify right side
86,617.38x = 3,156,379,758.01 - Step 5: Solve for x
x = 3,156,379,758.01/86,617.38 - Step 6: Final answer
x = 36,440.49
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1.5x scale
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.