Finding the Fourth Proportional to 86,605.87, 129,917.09 and 24,276.19
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Solution
The fourth proportional to 86,605.87, 129,917.09 and 24,276.19 is: 36,416.61
Step by Step Solution
- Step 1: Write the proportion equation
86,605.87 : 129,917.09 = 24,276.19 : x - Step 2: Convert to fraction form
86,605.87/129,917.09 = 24,276.19/x - Step 3: Cross multiply
86,605.87x = 129,917.09 × 24,276.19 - Step 4: Simplify right side
86,605.87x = 3,153,891,961.09 - Step 5: Solve for x
x = 3,153,891,961.09/86,605.87 - Step 6: Final answer
x = 36,416.61
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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.