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Finding the Fourth Proportional to 69,122.87, 103,518.23 and 39,450.75

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Solution

The fourth proportional to 69,122.87, 103,518.23 and 39,450.75 is: 59,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,122.87 : 103,518.23 = 39,450.75 : x
  2. Step 2: Convert to fraction form
    69,122.87/103,518.23 = 39,450.75/x
  3. Step 3: Cross multiply
    69,122.87x = 103,518.23 × 39,450.75
  4. Step 4: Simplify right side
    69,122.87x = 4,083,871,614.92
  5. Step 5: Solve for x
    x = 4,083,871,614.92/69,122.87
  6. Step 6: Final answer
    x = 59,081.34

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