Home / 80,105.04-120,165.66-27,507.42

Finding the Fourth Proportional to 80,105.04, 120,165.66 and 27,507.42

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Solution

The fourth proportional to 80,105.04, 120,165.66 and 27,507.42 is: 41,263.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,105.04 : 120,165.66 = 27,507.42 : x
  2. Step 2: Convert to fraction form
    80,105.04/120,165.66 = 27,507.42/x
  3. Step 3: Cross multiply
    80,105.04x = 120,165.66 × 27,507.42
  4. Step 4: Simplify right side
    80,105.04x = 3,305,447,279.20
  5. Step 5: Solve for x
    x = 3,305,447,279.20/80,105.04
  6. Step 6: Final answer
    x = 41,263.91

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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.