Finding the Fourth Proportional to 81,102.28, 121,652.16 and 24,943.12
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Solution
The fourth proportional to 81,102.28, 121,652.16 and 24,943.12 is: 37,414.29
Step by Step Solution
- Step 1: Write the proportion equation
81,102.28 : 121,652.16 = 24,943.12 : x - Step 2: Convert to fraction form
81,102.28/121,652.16 = 24,943.12/x - Step 3: Cross multiply
81,102.28x = 121,652.16 × 24,943.12 - Step 4: Simplify right side
81,102.28x = 3,034,384,425.14 - Step 5: Solve for x
x = 3,034,384,425.14/81,102.28 - Step 6: Final answer
x = 37,414.29
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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.