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Finding the Fourth Proportional to 72,719.96, 108,968.60 and 48,939.36

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Solution

The fourth proportional to 72,719.96, 108,968.60 and 48,939.36 is: 73,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,719.96 : 108,968.60 = 48,939.36 : x
  2. Step 2: Convert to fraction form
    72,719.96/108,968.60 = 48,939.36/x
  3. Step 3: Cross multiply
    72,719.96x = 108,968.60 × 48,939.36
  4. Step 4: Simplify right side
    72,719.96x = 5,332,853,544.10
  5. Step 5: Solve for x
    x = 5,332,853,544.10/72,719.96
  6. Step 6: Final answer
    x = 73,334.11

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