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Finding the Fourth Proportional to 87,398.99, 131,004.30 and 42,324.92

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Solution

The fourth proportional to 87,398.99, 131,004.30 and 42,324.92 is: 63,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,398.99 : 131,004.30 = 42,324.92 : x
  2. Step 2: Convert to fraction form
    87,398.99/131,004.30 = 42,324.92/x
  3. Step 3: Cross multiply
    87,398.99x = 131,004.30 × 42,324.92
  4. Step 4: Simplify right side
    87,398.99x = 5,544,746,517.16
  5. Step 5: Solve for x
    x = 5,544,746,517.16/87,398.99
  6. Step 6: Final answer
    x = 63,441.77

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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.