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Finding the Fourth Proportional to 85,325.24, 128,012.44 and 26,169.60

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Solution

The fourth proportional to 85,325.24, 128,012.44 and 26,169.60 is: 39,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,325.24 : 128,012.44 = 26,169.60 : x
  2. Step 2: Convert to fraction form
    85,325.24/128,012.44 = 26,169.60/x
  3. Step 3: Cross multiply
    85,325.24x = 128,012.44 × 26,169.60
  4. Step 4: Simplify right side
    85,325.24x = 3,350,034,349.82
  5. Step 5: Solve for x
    x = 3,350,034,349.82/85,325.24
  6. Step 6: Final answer
    x = 39,261.94

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