Home / 49,920.67-74,860.20-20,318.41

Finding the Fourth Proportional to 49,920.67, 74,860.20 and 20,318.41

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Solution

The fourth proportional to 49,920.67, 74,860.20 and 20,318.41 is: 30,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,920.67 : 74,860.20 = 20,318.41 : x
  2. Step 2: Convert to fraction form
    49,920.67/74,860.20 = 20,318.41/x
  3. Step 3: Cross multiply
    49,920.67x = 74,860.20 × 20,318.41
  4. Step 4: Simplify right side
    49,920.67x = 1,521,040,236.28
  5. Step 5: Solve for x
    x = 1,521,040,236.28/49,920.67
  6. Step 6: Final answer
    x = 30,469.15

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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.