Finding the Fourth Proportional to 86,562.68, 129,831.02 and 27,390.66
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Solution
The fourth proportional to 86,562.68, 129,831.02 and 27,390.66 is: 41,081.87
Step by Step Solution
- Step 1: Write the proportion equation
86,562.68 : 129,831.02 = 27,390.66 : x - Step 2: Convert to fraction form
86,562.68/129,831.02 = 27,390.66/x - Step 3: Cross multiply
86,562.68x = 129,831.02 × 27,390.66 - Step 4: Simplify right side
86,562.68x = 3,556,156,805.17 - Step 5: Solve for x
x = 3,556,156,805.17/86,562.68 - Step 6: Final answer
x = 41,081.87
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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.