Home / 72,474.10-108,731.67-25,731.70

Finding the Fourth Proportional to 72,474.10, 108,731.67 and 25,731.70

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Solution

The fourth proportional to 72,474.10, 108,731.67 and 25,731.70 is: 38,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,474.10 : 108,731.67 = 25,731.70 : x
  2. Step 2: Convert to fraction form
    72,474.10/108,731.67 = 25,731.70/x
  3. Step 3: Cross multiply
    72,474.10x = 108,731.67 × 25,731.70
  4. Step 4: Simplify right side
    72,474.10x = 2,797,850,712.94
  5. Step 5: Solve for x
    x = 2,797,850,712.94/72,474.10
  6. Step 6: Final answer
    x = 38,604.84

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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.