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Finding the Fourth Proportional to 68,418.52, 102,630.66 and 21,670.36

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Solution

The fourth proportional to 68,418.52, 102,630.66 and 21,670.36 is: 32,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.52 : 102,630.66 = 21,670.36 : x
  2. Step 2: Convert to fraction form
    68,418.52/102,630.66 = 21,670.36/x
  3. Step 3: Cross multiply
    68,418.52x = 102,630.66 × 21,670.36
  4. Step 4: Simplify right side
    68,418.52x = 2,224,043,349.24
  5. Step 5: Solve for x
    x = 2,224,043,349.24/68,418.52
  6. Step 6: Final answer
    x = 32,506.45

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