Home / 81,725.75-122,595.67-22,561.43

Finding the Fourth Proportional to 81,725.75, 122,595.67 and 22,561.43

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Solution

The fourth proportional to 81,725.75, 122,595.67 and 22,561.43 is: 33,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,725.75 : 122,595.67 = 22,561.43 : x
  2. Step 2: Convert to fraction form
    81,725.75/122,595.67 = 22,561.43/x
  3. Step 3: Cross multiply
    81,725.75x = 122,595.67 × 22,561.43
  4. Step 4: Simplify right side
    81,725.75x = 2,765,933,014.03
  5. Step 5: Solve for x
    x = 2,765,933,014.03/81,725.75
  6. Step 6: Final answer
    x = 33,844.08

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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.