Home / 51,581.22-77,372.90-16,520.78

Finding the Fourth Proportional to 51,581.22, 77,372.90 and 16,520.78

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Solution

The fourth proportional to 51,581.22, 77,372.90 and 16,520.78 is: 24,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,581.22 : 77,372.90 = 16,520.78 : x
  2. Step 2: Convert to fraction form
    51,581.22/77,372.90 = 16,520.78/x
  3. Step 3: Cross multiply
    51,581.22x = 77,372.90 × 16,520.78
  4. Step 4: Simplify right side
    51,581.22x = 1,278,260,658.86
  5. Step 5: Solve for x
    x = 1,278,260,658.86/51,581.22
  6. Step 6: Final answer
    x = 24,781.51

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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.