Home / 80,607.53-120,726.88-38,517.19

Finding the Fourth Proportional to 80,607.53, 120,726.88 and 38,517.19

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Solution

The fourth proportional to 80,607.53, 120,726.88 and 38,517.19 is: 57,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.53 : 120,726.88 = 38,517.19 : x
  2. Step 2: Convert to fraction form
    80,607.53/120,726.88 = 38,517.19/x
  3. Step 3: Cross multiply
    80,607.53x = 120,726.88 × 38,517.19
  4. Step 4: Simplify right side
    80,607.53x = 4,650,059,776.96
  5. Step 5: Solve for x
    x = 4,650,059,776.96/80,607.53
  6. Step 6: Final answer
    x = 57,687.66

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1.5x scale

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.