Home / 85,713.25-128,578.33-29,545.97

Finding the Fourth Proportional to 85,713.25, 128,578.33 and 29,545.97

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Solution

The fourth proportional to 85,713.25, 128,578.33 and 29,545.97 is: 44,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,713.25 : 128,578.33 = 29,545.97 : x
  2. Step 2: Convert to fraction form
    85,713.25/128,578.33 = 29,545.97/x
  3. Step 3: Cross multiply
    85,713.25x = 128,578.33 × 29,545.97
  4. Step 4: Simplify right side
    85,713.25x = 3,798,970,874.87
  5. Step 5: Solve for x
    x = 3,798,970,874.87/85,713.25
  6. Step 6: Final answer
    x = 44,321.86

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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.