Home / 80,919.30-121,378.29-24,759.18

Finding the Fourth Proportional to 80,919.30, 121,378.29 and 24,759.18

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Solution

The fourth proportional to 80,919.30, 121,378.29 and 24,759.18 is: 37,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,919.30 : 121,378.29 = 24,759.18 : x
  2. Step 2: Convert to fraction form
    80,919.30/121,378.29 = 24,759.18/x
  3. Step 3: Cross multiply
    80,919.30x = 121,378.29 × 24,759.18
  4. Step 4: Simplify right side
    80,919.30x = 3,005,226,930.20
  5. Step 5: Solve for x
    x = 3,005,226,930.20/80,919.30
  6. Step 6: Final answer
    x = 37,138.57

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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.