Home / 75,136.38-103,688.20-41,604.54

Finding the Fourth Proportional to 75,136.38, 103,688.20 and 41,604.54

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Solution

The fourth proportional to 75,136.38, 103,688.20 and 41,604.54 is: 57,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.38 : 103,688.20 = 41,604.54 : x
  2. Step 2: Convert to fraction form
    75,136.38/103,688.20 = 41,604.54/x
  3. Step 3: Cross multiply
    75,136.38x = 103,688.20 × 41,604.54
  4. Step 4: Simplify right side
    75,136.38x = 4,313,899,864.43
  5. Step 5: Solve for x
    x = 4,313,899,864.43/75,136.38
  6. Step 6: Final answer
    x = 57,414.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.