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Finding the Fourth Proportional to 57,751.76, 79,697.42 and 31,255.76

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Solution

The fourth proportional to 57,751.76, 79,697.42 and 31,255.76 is: 43,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,751.76 : 79,697.42 = 31,255.76 : x
  2. Step 2: Convert to fraction form
    57,751.76/79,697.42 = 31,255.76/x
  3. Step 3: Cross multiply
    57,751.76x = 79,697.42 × 31,255.76
  4. Step 4: Simplify right side
    57,751.76x = 2,491,003,432.14
  5. Step 5: Solve for x
    x = 2,491,003,432.14/57,751.76
  6. Step 6: Final answer
    x = 43,132.94

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