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Finding the Fourth Proportional to 72,202.05, 108,229.23 and 27,811.40

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Solution

The fourth proportional to 72,202.05, 108,229.23 and 27,811.40 is: 41,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,202.05 : 108,229.23 = 27,811.40 : x
  2. Step 2: Convert to fraction form
    72,202.05/108,229.23 = 27,811.40/x
  3. Step 3: Cross multiply
    72,202.05x = 108,229.23 × 27,811.40
  4. Step 4: Simplify right side
    72,202.05x = 3,010,005,866.08
  5. Step 5: Solve for x
    x = 3,010,005,866.08/72,202.05
  6. Step 6: Final answer
    x = 41,688.65

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