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Finding the Fourth Proportional to 57,234.40, 85,851.60 and 53,087.20

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Solution

The fourth proportional to 57,234.40, 85,851.60 and 53,087.20 is: 79,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.40 : 85,851.60 = 53,087.20 : x
  2. Step 2: Convert to fraction form
    57,234.40/85,851.60 = 53,087.20/x
  3. Step 3: Cross multiply
    57,234.40x = 85,851.60 × 53,087.20
  4. Step 4: Simplify right side
    57,234.40x = 4,557,621,059.52
  5. Step 5: Solve for x
    x = 4,557,621,059.52/57,234.40
  6. Step 6: Final answer
    x = 79,630.80

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