Home / 71,822.22-107,739.09-19,231.26

Finding the Fourth Proportional to 71,822.22, 107,739.09 and 19,231.26

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Solution

The fourth proportional to 71,822.22, 107,739.09 and 19,231.26 is: 28,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,822.22 : 107,739.09 = 19,231.26 : x
  2. Step 2: Convert to fraction form
    71,822.22/107,739.09 = 19,231.26/x
  3. Step 3: Cross multiply
    71,822.22x = 107,739.09 × 19,231.26
  4. Step 4: Simplify right side
    71,822.22x = 2,071,958,451.95
  5. Step 5: Solve for x
    x = 2,071,958,451.95/71,822.22
  6. Step 6: Final answer
    x = 28,848.43

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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.