Home / 80,581.26-120,872.31-27,273.75

Finding the Fourth Proportional to 80,581.26, 120,872.31 and 27,273.75

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Solution

The fourth proportional to 80,581.26, 120,872.31 and 27,273.75 is: 40,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,581.26 : 120,872.31 = 27,273.75 : x
  2. Step 2: Convert to fraction form
    80,581.26/120,872.31 = 27,273.75/x
  3. Step 3: Cross multiply
    80,581.26x = 120,872.31 × 27,273.75
  4. Step 4: Simplify right side
    80,581.26x = 3,296,641,164.86
  5. Step 5: Solve for x
    x = 3,296,641,164.86/80,581.26
  6. Step 6: Final answer
    x = 40,910.77

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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.