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Finding the Fourth Proportional to 87,735.29, 121,074.35 and 47,449.10

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Solution

The fourth proportional to 87,735.29, 121,074.35 and 47,449.10 is: 65,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.29 : 121,074.35 = 47,449.10 : x
  2. Step 2: Convert to fraction form
    87,735.29/121,074.35 = 47,449.10/x
  3. Step 3: Cross multiply
    87,735.29x = 121,074.35 × 47,449.10
  4. Step 4: Simplify right side
    87,735.29x = 5,744,868,097.97
  5. Step 5: Solve for x
    x = 5,744,868,097.97/87,735.29
  6. Step 6: Final answer
    x = 65,479.56

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