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Finding the Fourth Proportional to 87,047.52, 119,343.26 and 85,472.88

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Solution

The fourth proportional to 87,047.52, 119,343.26 and 85,472.88 is: 117,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,047.52 : 119,343.26 = 85,472.88 : x
  2. Step 2: Convert to fraction form
    87,047.52/119,343.26 = 85,472.88/x
  3. Step 3: Cross multiply
    87,047.52x = 119,343.26 × 85,472.88
  4. Step 4: Simplify right side
    87,047.52x = 10,200,612,140.79
  5. Step 5: Solve for x
    x = 10,200,612,140.79/87,047.52
  6. Step 6: Final answer
    x = 117,184.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.