Finding the Fourth Proportional to 71,243.20, 106,889.58 and 26,882.74
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Solution
The fourth proportional to 71,243.20, 106,889.58 and 26,882.74 is: 40,333.46
Step by Step Solution
- Step 1: Write the proportion equation
71,243.20 : 106,889.58 = 26,882.74 : x - Step 2: Convert to fraction form
71,243.20/106,889.58 = 26,882.74/x - Step 3: Cross multiply
71,243.20x = 106,889.58 × 26,882.74 - Step 4: Simplify right side
71,243.20x = 2,873,484,787.85 - Step 5: Solve for x
x = 2,873,484,787.85/71,243.20 - Step 6: Final answer
x = 40,333.46
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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.