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Finding the Fourth Proportional to 87,704.92, 121,032.78 and 47,418.68

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Solution

The fourth proportional to 87,704.92, 121,032.78 and 47,418.68 is: 65,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.92 : 121,032.78 = 47,418.68 : x
  2. Step 2: Convert to fraction form
    87,704.92/121,032.78 = 47,418.68/x
  3. Step 3: Cross multiply
    87,704.92x = 121,032.78 × 47,418.68
  4. Step 4: Simplify right side
    87,704.92x = 5,739,214,789.09
  5. Step 5: Solve for x
    x = 5,739,214,789.09/87,704.92
  6. Step 6: Final answer
    x = 65,437.77

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