Home / 72,438.13-108,672.60-22,517.02

Finding the Fourth Proportional to 72,438.13, 108,672.60 and 22,517.02

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Solution

The fourth proportional to 72,438.13, 108,672.60 and 22,517.02 is: 33,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438.13 : 108,672.60 = 22,517.02 : x
  2. Step 2: Convert to fraction form
    72,438.13/108,672.60 = 22,517.02/x
  3. Step 3: Cross multiply
    72,438.13x = 108,672.60 × 22,517.02
  4. Step 4: Simplify right side
    72,438.13x = 2,446,983,107.65
  5. Step 5: Solve for x
    x = 2,446,983,107.65/72,438.13
  6. Step 6: Final answer
    x = 33,780.32

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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.