Home / 54,279.19-81,419.19-16,838.56

Finding the Fourth Proportional to 54,279.19, 81,419.19 and 16,838.56

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Solution

The fourth proportional to 54,279.19, 81,419.19 and 16,838.56 is: 25,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.19 : 81,419.19 = 16,838.56 : x
  2. Step 2: Convert to fraction form
    54,279.19/81,419.19 = 16,838.56/x
  3. Step 3: Cross multiply
    54,279.19x = 81,419.19 × 16,838.56
  4. Step 4: Simplify right side
    54,279.19x = 1,370,981,915.97
  5. Step 5: Solve for x
    x = 1,370,981,915.97/54,279.19
  6. Step 6: Final answer
    x = 25,257.97

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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.