Home / 80,422.42-120,617.76-27,109.13

Finding the Fourth Proportional to 80,422.42, 120,617.76 and 27,109.13

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Solution

The fourth proportional to 80,422.42, 120,617.76 and 27,109.13 is: 40,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,422.42 : 120,617.76 = 27,109.13 : x
  2. Step 2: Convert to fraction form
    80,422.42/120,617.76 = 27,109.13/x
  3. Step 3: Cross multiply
    80,422.42x = 120,617.76 × 27,109.13
  4. Step 4: Simplify right side
    80,422.42x = 3,269,842,560.71
  5. Step 5: Solve for x
    x = 3,269,842,560.71/80,422.42
  6. Step 6: Final answer
    x = 40,658.35

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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.