Home / 67,180.11-100,781.64-27,715.65

Finding the Fourth Proportional to 67,180.11, 100,781.64 and 27,715.65

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Solution

The fourth proportional to 67,180.11, 100,781.64 and 27,715.65 is: 41,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,180.11 : 100,781.64 = 27,715.65 : x
  2. Step 2: Convert to fraction form
    67,180.11/100,781.64 = 27,715.65/x
  3. Step 3: Cross multiply
    67,180.11x = 100,781.64 × 27,715.65
  4. Step 4: Simplify right side
    67,180.11x = 2,793,228,660.67
  5. Step 5: Solve for x
    x = 2,793,228,660.67/67,180.11
  6. Step 6: Final answer
    x = 41,578.21

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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.