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Finding the Fourth Proportional to 54,665.60, 75,412.73 and 31,990.68

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Solution

The fourth proportional to 54,665.60, 75,412.73 and 31,990.68 is: 44,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,665.60 : 75,412.73 = 31,990.68 : x
  2. Step 2: Convert to fraction form
    54,665.60/75,412.73 = 31,990.68/x
  3. Step 3: Cross multiply
    54,665.60x = 75,412.73 × 31,990.68
  4. Step 4: Simplify right side
    54,665.60x = 2,412,504,353.40
  5. Step 5: Solve for x
    x = 2,412,504,353.40/54,665.60
  6. Step 6: Final answer
    x = 44,132.04

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