Finding the Fourth Proportional to 86,432.08, 129,648.12 and 27,273.74
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Solution
The fourth proportional to 86,432.08, 129,648.12 and 27,273.74 is: 40,910.61
Step by Step Solution
- Step 1: Write the proportion equation
86,432.08 : 129,648.12 = 27,273.74 : x - Step 2: Convert to fraction form
86,432.08/129,648.12 = 27,273.74/x - Step 3: Cross multiply
86,432.08x = 129,648.12 × 27,273.74 - Step 4: Simplify right side
86,432.08x = 3,535,989,116.37 - Step 5: Solve for x
x = 3,535,989,116.37/86,432.08 - Step 6: Final answer
x = 40,910.61
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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.