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Finding the Fourth Proportional to 73,715, 101,726.88 and 40,181

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Solution

The fourth proportional to 73,715, 101,726.88 and 40,181 is: 55,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,715 : 101,726.88 = 40,181 : x
  2. Step 2: Convert to fraction form
    73,715/101,726.88 = 40,181/x
  3. Step 3: Cross multiply
    73,715x = 101,726.88 × 40,181
  4. Step 4: Simplify right side
    73,715x = 4,087,487,765.28
  5. Step 5: Solve for x
    x = 4,087,487,765.28/73,715
  6. Step 6: Final answer
    x = 55,449.88

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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.