Home / 54,144.24-81,201.68-36,721.12

Finding the Fourth Proportional to 54,144.24, 81,201.68 and 36,721.12

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Solution

The fourth proportional to 54,144.24, 81,201.68 and 36,721.12 is: 55,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,144.24 : 81,201.68 = 36,721.12 : x
  2. Step 2: Convert to fraction form
    54,144.24/81,201.68 = 36,721.12/x
  3. Step 3: Cross multiply
    54,144.24x = 81,201.68 × 36,721.12
  4. Step 4: Simplify right side
    54,144.24x = 2,981,816,635.48
  5. Step 5: Solve for x
    x = 2,981,816,635.48/54,144.24
  6. Step 6: Final answer
    x = 55,071.72

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1.5x scale

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.