Home / 80,180.97-120,270.20-27,590.91

Finding the Fourth Proportional to 80,180.97, 120,270.20 and 27,590.91

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Solution

The fourth proportional to 80,180.97, 120,270.20 and 27,590.91 is: 41,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,180.97 : 120,270.20 = 27,590.91 : x
  2. Step 2: Convert to fraction form
    80,180.97/120,270.20 = 27,590.91/x
  3. Step 3: Cross multiply
    80,180.97x = 120,270.20 × 27,590.91
  4. Step 4: Simplify right side
    80,180.97x = 3,318,364,125.93
  5. Step 5: Solve for x
    x = 3,318,364,125.93/80,180.97
  6. Step 6: Final answer
    x = 41,385.93

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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.