Home / 40,743.09-61,102.88-11,161.89

Finding the Fourth Proportional to 40,743.09, 61,102.88 and 11,161.89

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Solution

The fourth proportional to 40,743.09, 61,102.88 and 11,161.89 is: 16,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,743.09 : 61,102.88 = 11,161.89 : x
  2. Step 2: Convert to fraction form
    40,743.09/61,102.88 = 11,161.89/x
  3. Step 3: Cross multiply
    40,743.09x = 61,102.88 × 11,161.89
  4. Step 4: Simplify right side
    40,743.09x = 682,023,569.43
  5. Step 5: Solve for x
    x = 682,023,569.43/40,743.09
  6. Step 6: Final answer
    x = 16,739.61

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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.