Home / 87,454.68-120,676.36-49,729.72

Finding the Fourth Proportional to 87,454.68, 120,676.36 and 49,729.72

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Solution

The fourth proportional to 87,454.68, 120,676.36 and 49,729.72 is: 68,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,454.68 : 120,676.36 = 49,729.72 : x
  2. Step 2: Convert to fraction form
    87,454.68/120,676.36 = 49,729.72/x
  3. Step 3: Cross multiply
    87,454.68x = 120,676.36 × 49,729.72
  4. Step 4: Simplify right side
    87,454.68x = 6,001,201,593.42
  5. Step 5: Solve for x
    x = 6,001,201,593.42/87,454.68
  6. Step 6: Final answer
    x = 68,620.70

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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.