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Finding the Fourth Proportional to 72,145.80, 99,591.86 and 43,860.52

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Solution

The fourth proportional to 72,145.80, 99,591.86 and 43,860.52 is: 60,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,145.80 : 99,591.86 = 43,860.52 : x
  2. Step 2: Convert to fraction form
    72,145.80/99,591.86 = 43,860.52/x
  3. Step 3: Cross multiply
    72,145.80x = 99,591.86 × 43,860.52
  4. Step 4: Simplify right side
    72,145.80x = 4,368,150,767.37
  5. Step 5: Solve for x
    x = 4,368,150,767.37/72,145.80
  6. Step 6: Final answer
    x = 60,546.15

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