Home / 45,723.88-68,553.01-20,751.38

Finding the Fourth Proportional to 45,723.88, 68,553.01 and 20,751.38

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Solution

The fourth proportional to 45,723.88, 68,553.01 and 20,751.38 is: 31,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,723.88 : 68,553.01 = 20,751.38 : x
  2. Step 2: Convert to fraction form
    45,723.88/68,553.01 = 20,751.38/x
  3. Step 3: Cross multiply
    45,723.88x = 68,553.01 × 20,751.38
  4. Step 4: Simplify right side
    45,723.88x = 1,422,569,560.65
  5. Step 5: Solve for x
    x = 1,422,569,560.65/45,723.88
  6. Step 6: Final answer
    x = 31,112.18

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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.