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Finding the Fourth Proportional to 57,474.25, 79,350.90 and 39,355.29

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Solution

The fourth proportional to 57,474.25, 79,350.90 and 39,355.29 is: 54,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,474.25 : 79,350.90 = 39,355.29 : x
  2. Step 2: Convert to fraction form
    57,474.25/79,350.90 = 39,355.29/x
  3. Step 3: Cross multiply
    57,474.25x = 79,350.90 × 39,355.29
  4. Step 4: Simplify right side
    57,474.25x = 3,122,877,681.26
  5. Step 5: Solve for x
    x = 3,122,877,681.26/57,474.25
  6. Step 6: Final answer
    x = 54,335.25

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