Home / 87,865.62-131,797.18-21,306.30

Finding the Fourth Proportional to 87,865.62, 131,797.18 and 21,306.30

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Solution

The fourth proportional to 87,865.62, 131,797.18 and 21,306.30 is: 31,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.62 : 131,797.18 = 21,306.30 : x
  2. Step 2: Convert to fraction form
    87,865.62/131,797.18 = 21,306.30/x
  3. Step 3: Cross multiply
    87,865.62x = 131,797.18 × 21,306.30
  4. Step 4: Simplify right side
    87,865.62x = 2,808,110,256.23
  5. Step 5: Solve for x
    x = 2,808,110,256.23/87,865.62
  6. Step 6: Final answer
    x = 31,959.15

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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.