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Finding the Fourth Proportional to 72,508.48, 108,719.52 and 25,108

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Solution

The fourth proportional to 72,508.48, 108,719.52 and 25,108 is: 37,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508.48 : 108,719.52 = 25,108 : x
  2. Step 2: Convert to fraction form
    72,508.48/108,719.52 = 25,108/x
  3. Step 3: Cross multiply
    72,508.48x = 108,719.52 × 25,108
  4. Step 4: Simplify right side
    72,508.48x = 2,729,729,708.16
  5. Step 5: Solve for x
    x = 2,729,729,708.16/72,508.48
  6. Step 6: Final answer
    x = 37,647.04

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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.