Home / 40,791.22-61,186.80-11,209.18

Finding the Fourth Proportional to 40,791.22, 61,186.80 and 11,209.18

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Solution

The fourth proportional to 40,791.22, 61,186.80 and 11,209.18 is: 16,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.22 : 61,186.80 = 11,209.18 : x
  2. Step 2: Convert to fraction form
    40,791.22/61,186.80 = 11,209.18/x
  3. Step 3: Cross multiply
    40,791.22x = 61,186.80 × 11,209.18
  4. Step 4: Simplify right side
    40,791.22x = 685,853,854.82
  5. Step 5: Solve for x
    x = 685,853,854.82/40,791.22
  6. Step 6: Final answer
    x = 16,813.76

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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.