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Finding the Fourth Proportional to 57,774.80, 86,662.20 and 48,443.60

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Solution

The fourth proportional to 57,774.80, 86,662.20 and 48,443.60 is: 72,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,774.80 : 86,662.20 = 48,443.60 : x
  2. Step 2: Convert to fraction form
    57,774.80/86,662.20 = 48,443.60/x
  3. Step 3: Cross multiply
    57,774.80x = 86,662.20 × 48,443.60
  4. Step 4: Simplify right side
    57,774.80x = 4,198,228,951.92
  5. Step 5: Solve for x
    x = 4,198,228,951.92/57,774.80
  6. Step 6: Final answer
    x = 72,665.40

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