Home / 81,899.06-122,849.27-22,739.34

Finding the Fourth Proportional to 81,899.06, 122,849.27 and 22,739.34

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Solution

The fourth proportional to 81,899.06, 122,849.27 and 22,739.34 is: 34,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,899.06 : 122,849.27 = 22,739.34 : x
  2. Step 2: Convert to fraction form
    81,899.06/122,849.27 = 22,739.34/x
  3. Step 3: Cross multiply
    81,899.06x = 122,849.27 × 22,739.34
  4. Step 4: Simplify right side
    81,899.06x = 2,793,511,376.13
  5. Step 5: Solve for x
    x = 2,793,511,376.13/81,899.06
  6. Step 6: Final answer
    x = 34,109.20

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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.