Home / 66,890.43-100,327.44-38,825.75

Finding the Fourth Proportional to 66,890.43, 100,327.44 and 38,825.75

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Solution

The fourth proportional to 66,890.43, 100,327.44 and 38,825.75 is: 58,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,890.43 : 100,327.44 = 38,825.75 : x
  2. Step 2: Convert to fraction form
    66,890.43/100,327.44 = 38,825.75/x
  3. Step 3: Cross multiply
    66,890.43x = 100,327.44 × 38,825.75
  4. Step 4: Simplify right side
    66,890.43x = 3,895,288,103.58
  5. Step 5: Solve for x
    x = 3,895,288,103.58/66,890.43
  6. Step 6: Final answer
    x = 58,233.86

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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.