Home / 41,721.72-62,279.10-38,638.05

Finding the Fourth Proportional to 41,721.72, 62,279.10 and 38,638.05

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Solution

The fourth proportional to 41,721.72, 62,279.10 and 38,638.05 is: 57,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,721.72 : 62,279.10 = 38,638.05 : x
  2. Step 2: Convert to fraction form
    41,721.72/62,279.10 = 38,638.05/x
  3. Step 3: Cross multiply
    41,721.72x = 62,279.10 × 38,638.05
  4. Step 4: Simplify right side
    41,721.72x = 2,406,342,979.76
  5. Step 5: Solve for x
    x = 2,406,342,979.76/41,721.72
  6. Step 6: Final answer
    x = 57,676.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.