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Finding the Fourth Proportional to 53,940.96, 74,447.52 and 39,834.56

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Solution

The fourth proportional to 53,940.96, 74,447.52 and 39,834.56 is: 54,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,940.96 : 74,447.52 = 39,834.56 : x
  2. Step 2: Convert to fraction form
    53,940.96/74,447.52 = 39,834.56/x
  3. Step 3: Cross multiply
    53,940.96x = 74,447.52 × 39,834.56
  4. Step 4: Simplify right side
    53,940.96x = 2,965,584,202.29
  5. Step 5: Solve for x
    x = 2,965,584,202.29/53,940.96
  6. Step 6: Final answer
    x = 54,978.34

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