Home / 41,128.92-61,684.11-18,920.93

Finding the Fourth Proportional to 41,128.92, 61,684.11 and 18,920.93

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Solution

The fourth proportional to 41,128.92, 61,684.11 and 18,920.93 is: 28,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,128.92 : 61,684.11 = 18,920.93 : x
  2. Step 2: Convert to fraction form
    41,128.92/61,684.11 = 18,920.93/x
  3. Step 3: Cross multiply
    41,128.92x = 61,684.11 × 18,920.93
  4. Step 4: Simplify right side
    41,128.92x = 1,167,120,419.00
  5. Step 5: Solve for x
    x = 1,167,120,419.00/41,128.92
  6. Step 6: Final answer
    x = 28,377.12

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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.