Home / 80,380.22-120,570.30-27,067.73

Finding the Fourth Proportional to 80,380.22, 120,570.30 and 27,067.73

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Solution

The fourth proportional to 80,380.22, 120,570.30 and 27,067.73 is: 40,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,380.22 : 120,570.30 = 27,067.73 : x
  2. Step 2: Convert to fraction form
    80,380.22/120,570.30 = 27,067.73/x
  3. Step 3: Cross multiply
    80,380.22x = 120,570.30 × 27,067.73
  4. Step 4: Simplify right side
    80,380.22x = 3,263,563,723.57
  5. Step 5: Solve for x
    x = 3,263,563,723.57/80,380.22
  6. Step 6: Final answer
    x = 40,601.58

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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.