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Finding the Fourth Proportional to 54,002.92, 81,003.70 and 18,463.88

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Solution

The fourth proportional to 54,002.92, 81,003.70 and 18,463.88 is: 27,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,002.92 : 81,003.70 = 18,463.88 : x
  2. Step 2: Convert to fraction form
    54,002.92/81,003.70 = 18,463.88/x
  3. Step 3: Cross multiply
    54,002.92x = 81,003.70 × 18,463.88
  4. Step 4: Simplify right side
    54,002.92x = 1,495,642,596.36
  5. Step 5: Solve for x
    x = 1,495,642,596.36/54,002.92
  6. Step 6: Final answer
    x = 27,695.59

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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.