Home / 80,179.28-120,267.66-27,589.22

Finding the Fourth Proportional to 80,179.28, 120,267.66 and 27,589.22

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Solution

The fourth proportional to 80,179.28, 120,267.66 and 27,589.22 is: 41,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.28 : 120,267.66 = 27,589.22 : x
  2. Step 2: Convert to fraction form
    80,179.28/120,267.66 = 27,589.22/x
  3. Step 3: Cross multiply
    80,179.28x = 120,267.66 × 27,589.22
  4. Step 4: Simplify right side
    80,179.28x = 3,318,090,930.63
  5. Step 5: Solve for x
    x = 3,318,090,930.63/80,179.28
  6. Step 6: Final answer
    x = 41,383.40

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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.