Home / 80,179.72-120,268.29-27,589.66

Finding the Fourth Proportional to 80,179.72, 120,268.29 and 27,589.66

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Solution

The fourth proportional to 80,179.72, 120,268.29 and 27,589.66 is: 41,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.72 : 120,268.29 = 27,589.66 : x
  2. Step 2: Convert to fraction form
    80,179.72/120,268.29 = 27,589.66/x
  3. Step 3: Cross multiply
    80,179.72x = 120,268.29 × 27,589.66
  4. Step 4: Simplify right side
    80,179.72x = 3,318,161,229.88
  5. Step 5: Solve for x
    x = 3,318,161,229.88/80,179.72
  6. Step 6: Final answer
    x = 41,384.05

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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.