Home / 45,489.67-68,231.33-17,021.21

Finding the Fourth Proportional to 45,489.67, 68,231.33 and 17,021.21

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Solution

The fourth proportional to 45,489.67, 68,231.33 and 17,021.21 is: 25,530.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,489.67 : 68,231.33 = 17,021.21 : x
  2. Step 2: Convert to fraction form
    45,489.67/68,231.33 = 17,021.21/x
  3. Step 3: Cross multiply
    45,489.67x = 68,231.33 × 17,021.21
  4. Step 4: Simplify right side
    45,489.67x = 1,161,379,434.08
  5. Step 5: Solve for x
    x = 1,161,379,434.08/45,489.67
  6. Step 6: Final answer
    x = 25,530.62

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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.