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Finding the Fourth Proportional to 48,906.40, 73,359.60 and 31,993.60

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Solution

The fourth proportional to 48,906.40, 73,359.60 and 31,993.60 is: 47,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,906.40 : 73,359.60 = 31,993.60 : x
  2. Step 2: Convert to fraction form
    48,906.40/73,359.60 = 31,993.60/x
  3. Step 3: Cross multiply
    48,906.40x = 73,359.60 × 31,993.60
  4. Step 4: Simplify right side
    48,906.40x = 2,347,037,698.56
  5. Step 5: Solve for x
    x = 2,347,037,698.56/48,906.40
  6. Step 6: Final answer
    x = 47,990.40

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