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Finding the Fourth Proportional to 83,091.60, 124,637.40 and 53,542.80

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Solution

The fourth proportional to 83,091.60, 124,637.40 and 53,542.80 is: 80,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,091.60 : 124,637.40 = 53,542.80 : x
  2. Step 2: Convert to fraction form
    83,091.60/124,637.40 = 53,542.80/x
  3. Step 3: Cross multiply
    83,091.60x = 124,637.40 × 53,542.80
  4. Step 4: Simplify right side
    83,091.60x = 6,673,435,380.72
  5. Step 5: Solve for x
    x = 6,673,435,380.72/83,091.60
  6. Step 6: Final answer
    x = 80,314.20

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