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Finding the Fourth Proportional to 67,057.38, 100,613.61 and 31,974.66

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Solution

The fourth proportional to 67,057.38, 100,613.61 and 31,974.66 is: 47,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,057.38 : 100,613.61 = 31,974.66 : x
  2. Step 2: Convert to fraction form
    67,057.38/100,613.61 = 31,974.66/x
  3. Step 3: Cross multiply
    67,057.38x = 100,613.61 × 31,974.66
  4. Step 4: Simplify right side
    67,057.38x = 3,217,085,971.12
  5. Step 5: Solve for x
    x = 3,217,085,971.12/67,057.38
  6. Step 6: Final answer
    x = 47,975.12

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