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Finding the Fourth Proportional to 87,917.64, 121,326.16 and 47,632.41

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Solution

The fourth proportional to 87,917.64, 121,326.16 and 47,632.41 is: 65,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.64 : 121,326.16 = 47,632.41 : x
  2. Step 2: Convert to fraction form
    87,917.64/121,326.16 = 47,632.41/x
  3. Step 3: Cross multiply
    87,917.64x = 121,326.16 × 47,632.41
  4. Step 4: Simplify right side
    87,917.64x = 5,779,057,396.85
  5. Step 5: Solve for x
    x = 5,779,057,396.85/87,917.64
  6. Step 6: Final answer
    x = 65,732.63

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