Home / 87,615.52-131,516.80-37,720.32

Finding the Fourth Proportional to 87,615.52, 131,516.80 and 37,720.32

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Solution

The fourth proportional to 87,615.52, 131,516.80 and 37,720.32 is: 56,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.52 : 131,516.80 = 37,720.32 : x
  2. Step 2: Convert to fraction form
    87,615.52/131,516.80 = 37,720.32/x
  3. Step 3: Cross multiply
    87,615.52x = 131,516.80 × 37,720.32
  4. Step 4: Simplify right side
    87,615.52x = 4,960,855,781.38
  5. Step 5: Solve for x
    x = 4,960,855,781.38/87,615.52
  6. Step 6: Final answer
    x = 56,620.74

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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.