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Finding the Fourth Proportional to 96,949.78, 145,420.44 and 30,388.39

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Solution

The fourth proportional to 96,949.78, 145,420.44 and 30,388.39 is: 45,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,949.78 : 145,420.44 = 30,388.39 : x
  2. Step 2: Convert to fraction form
    96,949.78/145,420.44 = 30,388.39/x
  3. Step 3: Cross multiply
    96,949.78x = 145,420.44 × 30,388.39
  4. Step 4: Simplify right side
    96,949.78x = 4,419,093,044.69
  5. Step 5: Solve for x
    x = 4,419,093,044.69/96,949.78
  6. Step 6: Final answer
    x = 45,581.26

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