Home / 87,966.88-131,949.20-21,407.12

Finding the Fourth Proportional to 87,966.88, 131,949.20 and 21,407.12

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Solution

The fourth proportional to 87,966.88, 131,949.20 and 21,407.12 is: 32,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.88 : 131,949.20 = 21,407.12 : x
  2. Step 2: Convert to fraction form
    87,966.88/131,949.20 = 21,407.12/x
  3. Step 3: Cross multiply
    87,966.88x = 131,949.20 × 21,407.12
  4. Step 4: Simplify right side
    87,966.88x = 2,824,652,358.30
  5. Step 5: Solve for x
    x = 2,824,652,358.30/87,966.88
  6. Step 6: Final answer
    x = 32,110.41

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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.