Home / 87,545.16-131,358.75-43,147.71

Finding the Fourth Proportional to 87,545.16, 131,358.75 and 43,147.71

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Solution

The fourth proportional to 87,545.16, 131,358.75 and 43,147.71 is: 64,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,545.16 : 131,358.75 = 43,147.71 : x
  2. Step 2: Convert to fraction form
    87,545.16/131,358.75 = 43,147.71/x
  3. Step 3: Cross multiply
    87,545.16x = 131,358.75 × 43,147.71
  4. Step 4: Simplify right side
    87,545.16x = 5,667,829,250.96
  5. Step 5: Solve for x
    x = 5,667,829,250.96/87,545.16
  6. Step 6: Final answer
    x = 64,741.78

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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.