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Finding the Fourth Proportional to 64,286.02, 88,704.16 and 40,395.79

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Solution

The fourth proportional to 64,286.02, 88,704.16 and 40,395.79 is: 55,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,286.02 : 88,704.16 = 40,395.79 : x
  2. Step 2: Convert to fraction form
    64,286.02/88,704.16 = 40,395.79/x
  3. Step 3: Cross multiply
    64,286.02x = 88,704.16 × 40,395.79
  4. Step 4: Simplify right side
    64,286.02x = 3,583,274,619.49
  5. Step 5: Solve for x
    x = 3,583,274,619.49/64,286.02
  6. Step 6: Final answer
    x = 55,739.56

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