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Finding the Fourth Proportional to 78,183.98, 117,204.88 and 40,700.01

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Solution

The fourth proportional to 78,183.98, 117,204.88 and 40,700.01 is: 61,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,183.98 : 117,204.88 = 40,700.01 : x
  2. Step 2: Convert to fraction form
    78,183.98/117,204.88 = 40,700.01/x
  3. Step 3: Cross multiply
    78,183.98x = 117,204.88 × 40,700.01
  4. Step 4: Simplify right side
    78,183.98x = 4,770,239,788.05
  5. Step 5: Solve for x
    x = 4,770,239,788.05/78,183.98
  6. Step 6: Final answer
    x = 61,013.01

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