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Finding the Fourth Proportional to 72,183.66, 99,601.29 and 40,352.82

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Solution

The fourth proportional to 72,183.66, 99,601.29 and 40,352.82 is: 55,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183.66 : 99,601.29 = 40,352.82 : x
  2. Step 2: Convert to fraction form
    72,183.66/99,601.29 = 40,352.82/x
  3. Step 3: Cross multiply
    72,183.66x = 99,601.29 × 40,352.82
  4. Step 4: Simplify right side
    72,183.66x = 4,019,192,927.14
  5. Step 5: Solve for x
    x = 4,019,192,927.14/72,183.66
  6. Step 6: Final answer
    x = 55,680.09

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