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Finding the Fourth Proportional to 54,039, 81,071.52 and 17,103

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Solution

The fourth proportional to 54,039, 81,071.52 and 17,103 is: 25,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,039 : 81,071.52 = 17,103 : x
  2. Step 2: Convert to fraction form
    54,039/81,071.52 = 17,103/x
  3. Step 3: Cross multiply
    54,039x = 81,071.52 × 17,103
  4. Step 4: Simplify right side
    54,039x = 1,386,566,206.56
  5. Step 5: Solve for x
    x = 1,386,566,206.56/54,039
  6. Step 6: Final answer
    x = 25,658.62

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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.