Home / 81,351.39-122,014.55-22,191.67

Finding the Fourth Proportional to 81,351.39, 122,014.55 and 22,191.67

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Solution

The fourth proportional to 81,351.39, 122,014.55 and 22,191.67 is: 33,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,351.39 : 122,014.55 = 22,191.67 : x
  2. Step 2: Convert to fraction form
    81,351.39/122,014.55 = 22,191.67/x
  3. Step 3: Cross multiply
    81,351.39x = 122,014.55 × 22,191.67
  4. Step 4: Simplify right side
    81,351.39x = 2,707,706,836.80
  5. Step 5: Solve for x
    x = 2,707,706,836.80/81,351.39
  6. Step 6: Final answer
    x = 33,284.09

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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.