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Finding the Fourth Proportional to 108,632.80, 162,949.20 and 61,976.80

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Solution

The fourth proportional to 108,632.80, 162,949.20 and 61,976.80 is: 92,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,632.80 : 162,949.20 = 61,976.80 : x
  2. Step 2: Convert to fraction form
    108,632.80/162,949.20 = 61,976.80/x
  3. Step 3: Cross multiply
    108,632.80x = 162,949.20 × 61,976.80
  4. Step 4: Simplify right side
    108,632.80x = 10,099,069,978.56
  5. Step 5: Solve for x
    x = 10,099,069,978.56/108,632.80
  6. Step 6: Final answer
    x = 92,965.20

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