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Finding the Fourth Proportional to 85,151.25, 127,745.10 and 28,996.38

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Solution

The fourth proportional to 85,151.25, 127,745.10 and 28,996.38 is: 43,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,151.25 : 127,745.10 = 28,996.38 : x
  2. Step 2: Convert to fraction form
    85,151.25/127,745.10 = 28,996.38/x
  3. Step 3: Cross multiply
    85,151.25x = 127,745.10 × 28,996.38
  4. Step 4: Simplify right side
    85,151.25x = 3,704,145,462.74
  5. Step 5: Solve for x
    x = 3,704,145,462.74/85,151.25
  6. Step 6: Final answer
    x = 43,500.78

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