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Finding the Fourth Proportional to 54,162, 81,232.20 and 19,103.04

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Solution

The fourth proportional to 54,162, 81,232.20 and 19,103.04 is: 28,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,162 : 81,232.20 = 19,103.04 : x
  2. Step 2: Convert to fraction form
    54,162/81,232.20 = 19,103.04/x
  3. Step 3: Cross multiply
    54,162x = 81,232.20 × 19,103.04
  4. Step 4: Simplify right side
    54,162x = 1,551,781,965.89
  5. Step 5: Solve for x
    x = 1,551,781,965.89/54,162
  6. Step 6: Final answer
    x = 28,650.75

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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.