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Finding the Fourth Proportional to 54,219.70, 81,329.55 and 23,115.70

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Solution

The fourth proportional to 54,219.70, 81,329.55 and 23,115.70 is: 34,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.70 : 81,329.55 = 23,115.70 : x
  2. Step 2: Convert to fraction form
    54,219.70/81,329.55 = 23,115.70/x
  3. Step 3: Cross multiply
    54,219.70x = 81,329.55 × 23,115.70
  4. Step 4: Simplify right side
    54,219.70x = 1,879,989,478.94
  5. Step 5: Solve for x
    x = 1,879,989,478.94/54,219.70
  6. Step 6: Final answer
    x = 34,673.55

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