Home / 71,936.38-107,948.31-30,383.38

Finding the Fourth Proportional to 71,936.38, 107,948.31 and 30,383.38

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Solution

The fourth proportional to 71,936.38, 107,948.31 and 30,383.38 is: 45,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.38 : 107,948.31 = 30,383.38 : x
  2. Step 2: Convert to fraction form
    71,936.38/107,948.31 = 30,383.38/x
  3. Step 3: Cross multiply
    71,936.38x = 107,948.31 × 30,383.38
  4. Step 4: Simplify right side
    71,936.38x = 3,279,833,831.43
  5. Step 5: Solve for x
    x = 3,279,833,831.43/71,936.38
  6. Step 6: Final answer
    x = 45,593.54

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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.