Home / 49,910.16-74,876.40-18,745.68

Finding the Fourth Proportional to 49,910.16, 74,876.40 and 18,745.68

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Solution

The fourth proportional to 49,910.16, 74,876.40 and 18,745.68 is: 28,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.16 : 74,876.40 = 18,745.68 : x
  2. Step 2: Convert to fraction form
    49,910.16/74,876.40 = 18,745.68/x
  3. Step 3: Cross multiply
    49,910.16x = 74,876.40 × 18,745.68
  4. Step 4: Simplify right side
    49,910.16x = 1,403,609,033.95
  5. Step 5: Solve for x
    x = 1,403,609,033.95/49,910.16
  6. Step 6: Final answer
    x = 28,122.71

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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.