Home / 42,489.82-63,726.09-40,382.20

Finding the Fourth Proportional to 42,489.82, 63,726.09 and 40,382.20

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Solution

The fourth proportional to 42,489.82, 63,726.09 and 40,382.20 is: 60,565.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.82 : 63,726.09 = 40,382.20 : x
  2. Step 2: Convert to fraction form
    42,489.82/63,726.09 = 40,382.20/x
  3. Step 3: Cross multiply
    42,489.82x = 63,726.09 × 40,382.20
  4. Step 4: Simplify right side
    42,489.82x = 2,573,399,711.60
  5. Step 5: Solve for x
    x = 2,573,399,711.60/42,489.82
  6. Step 6: Final answer
    x = 60,565.09

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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.