Home / 37,105.43-55,665.90-12,143.52

Finding the Fourth Proportional to 37,105.43, 55,665.90 and 12,143.52

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Solution

The fourth proportional to 37,105.43, 55,665.90 and 12,143.52 is: 18,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,105.43 : 55,665.90 = 12,143.52 : x
  2. Step 2: Convert to fraction form
    37,105.43/55,665.90 = 12,143.52/x
  3. Step 3: Cross multiply
    37,105.43x = 55,665.90 × 12,143.52
  4. Step 4: Simplify right side
    37,105.43x = 675,979,969.97
  5. Step 5: Solve for x
    x = 675,979,969.97/37,105.43
  6. Step 6: Final answer
    x = 18,217.82

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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.