Home / 85,144.07-117,480.84-49,331.90

Finding the Fourth Proportional to 85,144.07, 117,480.84 and 49,331.90

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Solution

The fourth proportional to 85,144.07, 117,480.84 and 49,331.90 is: 68,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.07 : 117,480.84 = 49,331.90 : x
  2. Step 2: Convert to fraction form
    85,144.07/117,480.84 = 49,331.90/x
  3. Step 3: Cross multiply
    85,144.07x = 117,480.84 × 49,331.90
  4. Step 4: Simplify right side
    85,144.07x = 5,795,553,050.80
  5. Step 5: Solve for x
    x = 5,795,553,050.80/85,144.07
  6. Step 6: Final answer
    x = 68,067.61

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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.