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Finding the Fourth Proportional to 83,861.80, 115,719.78 and 46,133.80

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Solution

The fourth proportional to 83,861.80, 115,719.78 and 46,133.80 is: 63,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.80 : 115,719.78 = 46,133.80 : x
  2. Step 2: Convert to fraction form
    83,861.80/115,719.78 = 46,133.80/x
  3. Step 3: Cross multiply
    83,861.80x = 115,719.78 × 46,133.80
  4. Step 4: Simplify right side
    83,861.80x = 5,338,593,186.56
  5. Step 5: Solve for x
    x = 5,338,593,186.56/83,861.80
  6. Step 6: Final answer
    x = 63,659.42

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