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Finding the Fourth Proportional to 57,189.24, 78,918.98 and 31,694.94

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Solution

The fourth proportional to 57,189.24, 78,918.98 and 31,694.94 is: 43,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,189.24 : 78,918.98 = 31,694.94 : x
  2. Step 2: Convert to fraction form
    57,189.24/78,918.98 = 31,694.94/x
  3. Step 3: Cross multiply
    57,189.24x = 78,918.98 × 31,694.94
  4. Step 4: Simplify right side
    57,189.24x = 2,501,332,335.96
  5. Step 5: Solve for x
    x = 2,501,332,335.96/57,189.24
  6. Step 6: Final answer
    x = 43,737.81

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