Home / 87,432.32-120,666.84-49,712.24

Finding the Fourth Proportional to 87,432.32, 120,666.84 and 49,712.24

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Solution

The fourth proportional to 87,432.32, 120,666.84 and 49,712.24 is: 68,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,432.32 : 120,666.84 = 49,712.24 : x
  2. Step 2: Convert to fraction form
    87,432.32/120,666.84 = 49,712.24/x
  3. Step 3: Cross multiply
    87,432.32x = 120,666.84 × 49,712.24
  4. Step 4: Simplify right side
    87,432.32x = 5,998,618,910.12
  5. Step 5: Solve for x
    x = 5,998,618,910.12/87,432.32
  6. Step 6: Final answer
    x = 68,608.71

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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.