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Finding the Fourth Proportional to 81,137.92, 121,718.40 and 24,982.70

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Solution

The fourth proportional to 81,137.92, 121,718.40 and 24,982.70 is: 37,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,137.92 : 121,718.40 = 24,982.70 : x
  2. Step 2: Convert to fraction form
    81,137.92/121,718.40 = 24,982.70/x
  3. Step 3: Cross multiply
    81,137.92x = 121,718.40 × 24,982.70
  4. Step 4: Simplify right side
    81,137.92x = 3,040,853,663.09
  5. Step 5: Solve for x
    x = 3,040,853,663.09/81,137.92
  6. Step 6: Final answer
    x = 37,477.59

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