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Finding the Fourth Proportional to 71,785.56, 99,063.06 and 39,954.44

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Solution

The fourth proportional to 71,785.56, 99,063.06 and 39,954.44 is: 55,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,785.56 : 99,063.06 = 39,954.44 : x
  2. Step 2: Convert to fraction form
    71,785.56/99,063.06 = 39,954.44/x
  3. Step 3: Cross multiply
    71,785.56x = 99,063.06 × 39,954.44
  4. Step 4: Simplify right side
    71,785.56x = 3,958,009,086.99
  5. Step 5: Solve for x
    x = 3,958,009,086.99/71,785.56
  6. Step 6: Final answer
    x = 55,136.56

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