Home / 87,945.14-131,916.30-27,972.75

Finding the Fourth Proportional to 87,945.14, 131,916.30 and 27,972.75

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Solution

The fourth proportional to 87,945.14, 131,916.30 and 27,972.75 is: 41,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,945.14 : 131,916.30 = 27,972.75 : x
  2. Step 2: Convert to fraction form
    87,945.14/131,916.30 = 27,972.75/x
  3. Step 3: Cross multiply
    87,945.14x = 131,916.30 × 27,972.75
  4. Step 4: Simplify right side
    87,945.14x = 3,690,061,680.83
  5. Step 5: Solve for x
    x = 3,690,061,680.83/87,945.14
  6. Step 6: Final answer
    x = 41,958.68

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Double scale
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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.