Home / 81,680.67-122,527.15-22,515.82

Finding the Fourth Proportional to 81,680.67, 122,527.15 and 22,515.82

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Solution

The fourth proportional to 81,680.67, 122,527.15 and 22,515.82 is: 33,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,680.67 : 122,527.15 = 22,515.82 : x
  2. Step 2: Convert to fraction form
    81,680.67/122,527.15 = 22,515.82/x
  3. Step 3: Cross multiply
    81,680.67x = 122,527.15 × 22,515.82
  4. Step 4: Simplify right side
    81,680.67x = 2,758,798,891.91
  5. Step 5: Solve for x
    x = 2,758,798,891.91/81,680.67
  6. Step 6: Final answer
    x = 33,775.42

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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.