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Finding the Fourth Proportional to 73,217.70, 109,826.55 and 28,820.21

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Solution

The fourth proportional to 73,217.70, 109,826.55 and 28,820.21 is: 43,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,217.70 : 109,826.55 = 28,820.21 : x
  2. Step 2: Convert to fraction form
    73,217.70/109,826.55 = 28,820.21/x
  3. Step 3: Cross multiply
    73,217.70x = 109,826.55 × 28,820.21
  4. Step 4: Simplify right side
    73,217.70x = 3,165,223,685.44
  5. Step 5: Solve for x
    x = 3,165,223,685.44/73,217.70
  6. Step 6: Final answer
    x = 43,230.31

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