Home / 49,120.92-67,786.20-27,900

Finding the Fourth Proportional to 49,120.92, 67,786.20 and 27,900

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Solution

The fourth proportional to 49,120.92, 67,786.20 and 27,900 is: 38,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,120.92 : 67,786.20 = 27,900 : x
  2. Step 2: Convert to fraction form
    49,120.92/67,786.20 = 27,900/x
  3. Step 3: Cross multiply
    49,120.92x = 67,786.20 × 27,900
  4. Step 4: Simplify right side
    49,120.92x = 1,891,234,980
  5. Step 5: Solve for x
    x = 1,891,234,980/49,120.92
  6. Step 6: Final answer
    x = 38,501.62

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1.5x scale

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.