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Finding the Fourth Proportional to 57,195.78, 78,766.98 and 51,481.86

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Solution

The fourth proportional to 57,195.78, 78,766.98 and 51,481.86 is: 70,898.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,195.78 : 78,766.98 = 51,481.86 : x
  2. Step 2: Convert to fraction form
    57,195.78/78,766.98 = 51,481.86/x
  3. Step 3: Cross multiply
    57,195.78x = 78,766.98 × 51,481.86
  4. Step 4: Simplify right side
    57,195.78x = 4,055,070,636.98
  5. Step 5: Solve for x
    x = 4,055,070,636.98/57,195.78
  6. Step 6: Final answer
    x = 70,898.07

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