Finding the Fourth Proportional to 84,614.28, 126,787.92 and 31,232.80
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Solution
The fourth proportional to 84,614.28, 126,787.92 and 31,232.80 is: 46,799.92
Step by Step Solution
- Step 1: Write the proportion equation
84,614.28 : 126,787.92 = 31,232.80 : x - Step 2: Convert to fraction form
84,614.28/126,787.92 = 31,232.80/x - Step 3: Cross multiply
84,614.28x = 126,787.92 × 31,232.80 - Step 4: Simplify right side
84,614.28x = 3,959,941,747.78 - Step 5: Solve for x
x = 3,959,941,747.78/84,614.28 - Step 6: Final answer
x = 46,799.92
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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.