Home / 57,940.38-86,761.94-40,145.76

Finding the Fourth Proportional to 57,940.38, 86,761.94 and 40,145.76

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Solution

The fourth proportional to 57,940.38, 86,761.94 and 40,145.76 is: 60,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,940.38 : 86,761.94 = 40,145.76 : x
  2. Step 2: Convert to fraction form
    57,940.38/86,761.94 = 40,145.76/x
  3. Step 3: Cross multiply
    57,940.38x = 86,761.94 × 40,145.76
  4. Step 4: Simplify right side
    57,940.38x = 3,483,124,136.91
  5. Step 5: Solve for x
    x = 3,483,124,136.91/57,940.38
  6. Step 6: Final answer
    x = 60,115.66

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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.