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Finding the Fourth Proportional to 68,725.80, 103,128.33 and 37,135.92

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Solution

The fourth proportional to 68,725.80, 103,128.33 and 37,135.92 is: 55,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,725.80 : 103,128.33 = 37,135.92 : x
  2. Step 2: Convert to fraction form
    68,725.80/103,128.33 = 37,135.92/x
  3. Step 3: Cross multiply
    68,725.80x = 103,128.33 × 37,135.92
  4. Step 4: Simplify right side
    68,725.80x = 3,829,765,412.61
  5. Step 5: Solve for x
    x = 3,829,765,412.61/68,725.80
  6. Step 6: Final answer
    x = 55,725.29

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