Home / 66,202.76-91,354.38-38,974.52

Finding the Fourth Proportional to 66,202.76, 91,354.38 and 38,974.52

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Solution

The fourth proportional to 66,202.76, 91,354.38 and 38,974.52 is: 53,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,202.76 : 91,354.38 = 38,974.52 : x
  2. Step 2: Convert to fraction form
    66,202.76/91,354.38 = 38,974.52/x
  3. Step 3: Cross multiply
    66,202.76x = 91,354.38 × 38,974.52
  4. Step 4: Simplify right side
    66,202.76x = 3,560,493,110.40
  5. Step 5: Solve for x
    x = 3,560,493,110.40/66,202.76
  6. Step 6: Final answer
    x = 53,781.64

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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.