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Finding the Fourth Proportional to 59,120.75, 81,491.27 and 39,993.55

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Solution

The fourth proportional to 59,120.75, 81,491.27 and 39,993.55 is: 55,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,120.75 : 81,491.27 = 39,993.55 : x
  2. Step 2: Convert to fraction form
    59,120.75/81,491.27 = 39,993.55/x
  3. Step 3: Cross multiply
    59,120.75x = 81,491.27 × 39,993.55
  4. Step 4: Simplify right side
    59,120.75x = 3,259,124,777.61
  5. Step 5: Solve for x
    x = 3,259,124,777.61/59,120.75
  6. Step 6: Final answer
    x = 55,126.58

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