Home / 74,211.13-111,302.92-21,608.11

Finding the Fourth Proportional to 74,211.13, 111,302.92 and 21,608.11

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Solution

The fourth proportional to 74,211.13, 111,302.92 and 21,608.11 is: 32,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,211.13 : 111,302.92 = 21,608.11 : x
  2. Step 2: Convert to fraction form
    74,211.13/111,302.92 = 21,608.11/x
  3. Step 3: Cross multiply
    74,211.13x = 111,302.92 × 21,608.11
  4. Step 4: Simplify right side
    74,211.13x = 2,405,045,738.68
  5. Step 5: Solve for x
    x = 2,405,045,738.68/74,211.13
  6. Step 6: Final answer
    x = 32,408.15

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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.