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Finding the Fourth Proportional to 83,021.80, 124,532.70 and 33,109.60

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Solution

The fourth proportional to 83,021.80, 124,532.70 and 33,109.60 is: 49,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,021.80 : 124,532.70 = 33,109.60 : x
  2. Step 2: Convert to fraction form
    83,021.80/124,532.70 = 33,109.60/x
  3. Step 3: Cross multiply
    83,021.80x = 124,532.70 × 33,109.60
  4. Step 4: Simplify right side
    83,021.80x = 4,123,227,883.92
  5. Step 5: Solve for x
    x = 4,123,227,883.92/83,021.80
  6. Step 6: Final answer
    x = 49,664.40

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