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Finding the Fourth Proportional to 54,601.30, 81,901.90 and 15,158.40

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Solution

The fourth proportional to 54,601.30, 81,901.90 and 15,158.40 is: 22,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,601.30 : 81,901.90 = 15,158.40 : x
  2. Step 2: Convert to fraction form
    54,601.30/81,901.90 = 15,158.40/x
  3. Step 3: Cross multiply
    54,601.30x = 81,901.90 × 15,158.40
  4. Step 4: Simplify right side
    54,601.30x = 1,241,501,760.96
  5. Step 5: Solve for x
    x = 1,241,501,760.96/54,601.30
  6. Step 6: Final answer
    x = 22,737.59

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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.