Home / 87,397.01-120,617.13-53,425.39

Finding the Fourth Proportional to 87,397.01, 120,617.13 and 53,425.39

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Solution

The fourth proportional to 87,397.01, 120,617.13 and 53,425.39 is: 73,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,397.01 : 120,617.13 = 53,425.39 : x
  2. Step 2: Convert to fraction form
    87,397.01/120,617.13 = 53,425.39/x
  3. Step 3: Cross multiply
    87,397.01x = 120,617.13 × 53,425.39
  4. Step 4: Simplify right side
    87,397.01x = 6,444,016,340.72
  5. Step 5: Solve for x
    x = 6,444,016,340.72/87,397.01
  6. Step 6: Final answer
    x = 73,732.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.