Home / 40,786.92-61,139.02-27,640.60

Finding the Fourth Proportional to 40,786.92, 61,139.02 and 27,640.60

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Solution

The fourth proportional to 40,786.92, 61,139.02 and 27,640.60 is: 41,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786.92 : 61,139.02 = 27,640.60 : x
  2. Step 2: Convert to fraction form
    40,786.92/61,139.02 = 27,640.60/x
  3. Step 3: Cross multiply
    40,786.92x = 61,139.02 × 27,640.60
  4. Step 4: Simplify right side
    40,786.92x = 1,689,919,196.21
  5. Step 5: Solve for x
    x = 1,689,919,196.21/40,786.92
  6. Step 6: Final answer
    x = 41,432.87

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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.