Home / 40,782.83-61,171.27-11,198.12

Finding the Fourth Proportional to 40,782.83, 61,171.27 and 11,198.12

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Solution

The fourth proportional to 40,782.83, 61,171.27 and 11,198.12 is: 16,796.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,782.83 : 61,171.27 = 11,198.12 : x
  2. Step 2: Convert to fraction form
    40,782.83/61,171.27 = 11,198.12/x
  3. Step 3: Cross multiply
    40,782.83x = 61,171.27 × 11,198.12
  4. Step 4: Simplify right side
    40,782.83x = 685,002,888.16
  5. Step 5: Solve for x
    x = 685,002,888.16/40,782.83
  6. Step 6: Final answer
    x = 16,796.36

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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.