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Finding the Fourth Proportional to 45,882.77, 68,765.83 and 20,936.39

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Solution

The fourth proportional to 45,882.77, 68,765.83 and 20,936.39 is: 31,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,882.77 : 68,765.83 = 20,936.39 : x
  2. Step 2: Convert to fraction form
    45,882.77/68,765.83 = 20,936.39/x
  3. Step 3: Cross multiply
    45,882.77x = 68,765.83 × 20,936.39
  4. Step 4: Simplify right side
    45,882.77x = 1,439,707,839.38
  5. Step 5: Solve for x
    x = 1,439,707,839.38/45,882.77
  6. Step 6: Final answer
    x = 31,377.97

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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.