Home / 40,781.22-61,171.80-11,199.18

Finding the Fourth Proportional to 40,781.22, 61,171.80 and 11,199.18

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Solution

The fourth proportional to 40,781.22, 61,171.80 and 11,199.18 is: 16,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.22 : 61,171.80 = 11,199.18 : x
  2. Step 2: Convert to fraction form
    40,781.22/61,171.80 = 11,199.18/x
  3. Step 3: Cross multiply
    40,781.22x = 61,171.80 × 11,199.18
  4. Step 4: Simplify right side
    40,781.22x = 685,073,999.12
  5. Step 5: Solve for x
    x = 685,073,999.12/40,781.22
  6. Step 6: Final answer
    x = 16,798.76

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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.