Finding the Fourth Proportional to 81,162.48, 121,732.38 and 27,853.62
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Solution
The fourth proportional to 81,162.48, 121,732.38 and 27,853.62 is: 41,776.54
Step by Step Solution
- Step 1: Write the proportion equation
81,162.48 : 121,732.38 = 27,853.62 : x - Step 2: Convert to fraction form
81,162.48/121,732.38 = 27,853.62/x - Step 3: Cross multiply
81,162.48x = 121,732.38 × 27,853.62 - Step 4: Simplify right side
81,162.48x = 3,390,687,454.22 - Step 5: Solve for x
x = 3,390,687,454.22/81,162.48 - Step 6: Final answer
x = 41,776.54
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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.