Finding the Fourth Proportional to 81,001.20, 121,486.14 and 24,827.70
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Solution
The fourth proportional to 81,001.20, 121,486.14 and 24,827.70 is: 37,236.75
Step by Step Solution
- Step 1: Write the proportion equation
81,001.20 : 121,486.14 = 24,827.70 : x - Step 2: Convert to fraction form
81,001.20/121,486.14 = 24,827.70/x - Step 3: Cross multiply
81,001.20x = 121,486.14 × 24,827.70 - Step 4: Simplify right side
81,001.20x = 3,016,221,438.08 - Step 5: Solve for x
x = 3,016,221,438.08/81,001.20 - Step 6: Final answer
x = 37,236.75
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1.5x scale
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.