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Finding the Fourth Proportional to 81,201.36, 121,799.16 and 36,797.03

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Solution

The fourth proportional to 81,201.36, 121,799.16 and 36,797.03 is: 55,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,201.36 : 121,799.16 = 36,797.03 : x
  2. Step 2: Convert to fraction form
    81,201.36/121,799.16 = 36,797.03/x
  3. Step 3: Cross multiply
    81,201.36x = 121,799.16 × 36,797.03
  4. Step 4: Simplify right side
    81,201.36x = 4,481,846,735.50
  5. Step 5: Solve for x
    x = 4,481,846,735.50/81,201.36
  6. Step 6: Final answer
    x = 55,194.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.