Finding the Fourth Proportional to 86,218.09, 129,332.59 and 27,056.09
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Solution
The fourth proportional to 86,218.09, 129,332.59 and 27,056.09 is: 40,585.85
Step by Step Solution
- Step 1: Write the proportion equation
86,218.09 : 129,332.59 = 27,056.09 : x - Step 2: Convert to fraction form
86,218.09/129,332.59 = 27,056.09/x - Step 3: Cross multiply
86,218.09x = 129,332.59 × 27,056.09 - Step 4: Simplify right side
86,218.09x = 3,499,234,262.61 - Step 5: Solve for x
x = 3,499,234,262.61/86,218.09 - Step 6: Final answer
x = 40,585.85
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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.