Home / 87,665.20-120,882.84-55,793.32

Finding the Fourth Proportional to 87,665.20, 120,882.84 and 55,793.32

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Solution

The fourth proportional to 87,665.20, 120,882.84 and 55,793.32 is: 76,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,665.20 : 120,882.84 = 55,793.32 : x
  2. Step 2: Convert to fraction form
    87,665.20/120,882.84 = 55,793.32/x
  3. Step 3: Cross multiply
    87,665.20x = 120,882.84 × 55,793.32
  4. Step 4: Simplify right side
    87,665.20x = 6,744,454,974.63
  5. Step 5: Solve for x
    x = 6,744,454,974.63/87,665.20
  6. Step 6: Final answer
    x = 76,934.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.