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Finding the Fourth Proportional to 87,851.27, 121,117.51 and 65,954.85

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Solution

The fourth proportional to 87,851.27, 121,117.51 and 65,954.85 is: 90,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.27 : 121,117.51 = 65,954.85 : x
  2. Step 2: Convert to fraction form
    87,851.27/121,117.51 = 65,954.85/x
  3. Step 3: Cross multiply
    87,851.27x = 121,117.51 × 65,954.85
  4. Step 4: Simplify right side
    87,851.27x = 7,988,287,039.54
  5. Step 5: Solve for x
    x = 7,988,287,039.54/87,851.27
  6. Step 6: Final answer
    x = 90,929.67

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