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Finding the Fourth Proportional to 78,268.44, 117,396.18 and 25,681.08

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Solution

The fourth proportional to 78,268.44, 117,396.18 and 25,681.08 is: 38,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,268.44 : 117,396.18 = 25,681.08 : x
  2. Step 2: Convert to fraction form
    78,268.44/117,396.18 = 25,681.08/x
  3. Step 3: Cross multiply
    78,268.44x = 117,396.18 × 25,681.08
  4. Step 4: Simplify right side
    78,268.44x = 3,014,860,690.27
  5. Step 5: Solve for x
    x = 3,014,860,690.27/78,268.44
  6. Step 6: Final answer
    x = 38,519.49

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