Home / 87,017.28-130,545.12-27,857.76

Finding the Fourth Proportional to 87,017.28, 130,545.12 and 27,857.76

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Solution

The fourth proportional to 87,017.28, 130,545.12 and 27,857.76 is: 41,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,017.28 : 130,545.12 = 27,857.76 : x
  2. Step 2: Convert to fraction form
    87,017.28/130,545.12 = 27,857.76/x
  3. Step 3: Cross multiply
    87,017.28x = 130,545.12 × 27,857.76
  4. Step 4: Simplify right side
    87,017.28x = 3,636,694,622.13
  5. Step 5: Solve for x
    x = 3,636,694,622.13/87,017.28
  6. Step 6: Final answer
    x = 41,792.79

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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.