Home / 66,272.25-91,456.11-36,057.80

Finding the Fourth Proportional to 66,272.25, 91,456.11 and 36,057.80

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Solution

The fourth proportional to 66,272.25, 91,456.11 and 36,057.80 is: 49,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,272.25 : 91,456.11 = 36,057.80 : x
  2. Step 2: Convert to fraction form
    66,272.25/91,456.11 = 36,057.80/x
  3. Step 3: Cross multiply
    66,272.25x = 91,456.11 × 36,057.80
  4. Step 4: Simplify right side
    66,272.25x = 3,297,705,665.88
  5. Step 5: Solve for x
    x = 3,297,705,665.88/66,272.25
  6. Step 6: Final answer
    x = 49,759.98

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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.