Home / 54,721.91-82,085.32-16,768.39

Finding the Fourth Proportional to 54,721.91, 82,085.32 and 16,768.39

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Solution

The fourth proportional to 54,721.91, 82,085.32 and 16,768.39 is: 25,153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,721.91 : 82,085.32 = 16,768.39 : x
  2. Step 2: Convert to fraction form
    54,721.91/82,085.32 = 16,768.39/x
  3. Step 3: Cross multiply
    54,721.91x = 82,085.32 × 16,768.39
  4. Step 4: Simplify right side
    54,721.91x = 1,376,438,575.19
  5. Step 5: Solve for x
    x = 1,376,438,575.19/54,721.91
  6. Step 6: Final answer
    x = 25,153.34

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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.