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Finding the Fourth Proportional to 54,942.80, 82,414.20 and 41,820.80

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Solution

The fourth proportional to 54,942.80, 82,414.20 and 41,820.80 is: 62,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,942.80 : 82,414.20 = 41,820.80 : x
  2. Step 2: Convert to fraction form
    54,942.80/82,414.20 = 41,820.80/x
  3. Step 3: Cross multiply
    54,942.80x = 82,414.20 × 41,820.80
  4. Step 4: Simplify right side
    54,942.80x = 3,446,627,775.36
  5. Step 5: Solve for x
    x = 3,446,627,775.36/54,942.80
  6. Step 6: Final answer
    x = 62,731.20

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