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Finding the Fourth Proportional to 54,400.40, 81,600.60 and 31,072.40

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Solution

The fourth proportional to 54,400.40, 81,600.60 and 31,072.40 is: 46,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,400.40 : 81,600.60 = 31,072.40 : x
  2. Step 2: Convert to fraction form
    54,400.40/81,600.60 = 31,072.40/x
  3. Step 3: Cross multiply
    54,400.40x = 81,600.60 × 31,072.40
  4. Step 4: Simplify right side
    54,400.40x = 2,535,526,483.44
  5. Step 5: Solve for x
    x = 2,535,526,483.44/54,400.40
  6. Step 6: Final answer
    x = 46,608.60

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