Home / 68,540.38-94,579.85-39,860.61

Finding the Fourth Proportional to 68,540.38, 94,579.85 and 39,860.61

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Solution

The fourth proportional to 68,540.38, 94,579.85 and 39,860.61 is: 55,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,540.38 : 94,579.85 = 39,860.61 : x
  2. Step 2: Convert to fraction form
    68,540.38/94,579.85 = 39,860.61/x
  3. Step 3: Cross multiply
    68,540.38x = 94,579.85 × 39,860.61
  4. Step 4: Simplify right side
    68,540.38x = 3,770,010,259.69
  5. Step 5: Solve for x
    x = 3,770,010,259.69/68,540.38
  6. Step 6: Final answer
    x = 55,004.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.