Home / 87,944.12-131,916.23-21,384.29

Finding the Fourth Proportional to 87,944.12, 131,916.23 and 21,384.29

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Solution

The fourth proportional to 87,944.12, 131,916.23 and 21,384.29 is: 32,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,944.12 : 131,916.23 = 21,384.29 : x
  2. Step 2: Convert to fraction form
    87,944.12/131,916.23 = 21,384.29/x
  3. Step 3: Cross multiply
    87,944.12x = 131,916.23 × 21,384.29
  4. Step 4: Simplify right side
    87,944.12x = 2,820,934,151.52
  5. Step 5: Solve for x
    x = 2,820,934,151.52/87,944.12
  6. Step 6: Final answer
    x = 32,076.44

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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.