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Finding the Fourth Proportional to 73,286.54, 109,936.29 and 39,992.30

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Solution

The fourth proportional to 73,286.54, 109,936.29 and 39,992.30 is: 59,991.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,286.54 : 109,936.29 = 39,992.30 : x
  2. Step 2: Convert to fraction form
    73,286.54/109,936.29 = 39,992.30/x
  3. Step 3: Cross multiply
    73,286.54x = 109,936.29 × 39,992.30
  4. Step 4: Simplify right side
    73,286.54x = 4,396,605,090.57
  5. Step 5: Solve for x
    x = 4,396,605,090.57/73,286.54
  6. Step 6: Final answer
    x = 59,991.99

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1.5x scale

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.