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Finding the Fourth Proportional to 81,274.88, 112,154.08 and 45,458.72

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Solution

The fourth proportional to 81,274.88, 112,154.08 and 45,458.72 is: 62,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,274.88 : 112,154.08 = 45,458.72 : x
  2. Step 2: Convert to fraction form
    81,274.88/112,154.08 = 45,458.72/x
  3. Step 3: Cross multiply
    81,274.88x = 112,154.08 × 45,458.72
  4. Step 4: Simplify right side
    81,274.88x = 5,098,380,919.58
  5. Step 5: Solve for x
    x = 5,098,380,919.58/81,274.88
  6. Step 6: Final answer
    x = 62,730.09

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