Home / 80,376.26-120,565.29-38,260.22

Finding the Fourth Proportional to 80,376.26, 120,565.29 and 38,260.22

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Solution

The fourth proportional to 80,376.26, 120,565.29 and 38,260.22 is: 57,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,376.26 : 120,565.29 = 38,260.22 : x
  2. Step 2: Convert to fraction form
    80,376.26/120,565.29 = 38,260.22/x
  3. Step 3: Cross multiply
    80,376.26x = 120,565.29 × 38,260.22
  4. Step 4: Simplify right side
    80,376.26x = 4,612,854,519.76
  5. Step 5: Solve for x
    x = 4,612,854,519.76/80,376.26
  6. Step 6: Final answer
    x = 57,390.76

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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.