Home / 42,439.14-63,650.48-40,331.70

Finding the Fourth Proportional to 42,439.14, 63,650.48 and 40,331.70

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Solution

The fourth proportional to 42,439.14, 63,650.48 and 40,331.70 is: 60,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,439.14 : 63,650.48 = 40,331.70 : x
  2. Step 2: Convert to fraction form
    42,439.14/63,650.48 = 40,331.70/x
  3. Step 3: Cross multiply
    42,439.14x = 63,650.48 × 40,331.70
  4. Step 4: Simplify right side
    42,439.14x = 2,567,131,862.56
  5. Step 5: Solve for x
    x = 2,567,131,862.56/42,439.14
  6. Step 6: Final answer
    x = 60,489.72

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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.