Home / 66,229.59-99,388.16-31,179.27

Finding the Fourth Proportional to 66,229.59, 99,388.16 and 31,179.27

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Solution

The fourth proportional to 66,229.59, 99,388.16 and 31,179.27 is: 46,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,229.59 : 99,388.16 = 31,179.27 : x
  2. Step 2: Convert to fraction form
    66,229.59/99,388.16 = 31,179.27/x
  3. Step 3: Cross multiply
    66,229.59x = 99,388.16 × 31,179.27
  4. Step 4: Simplify right side
    66,229.59x = 3,098,850,119.55
  5. Step 5: Solve for x
    x = 3,098,850,119.55/66,229.59
  6. Step 6: Final answer
    x = 46,789.51

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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.