Home / 81,379.45-122,069.18-22,216.71

Finding the Fourth Proportional to 81,379.45, 122,069.18 and 22,216.71

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Solution

The fourth proportional to 81,379.45, 122,069.18 and 22,216.71 is: 33,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,379.45 : 122,069.18 = 22,216.71 : x
  2. Step 2: Convert to fraction form
    81,379.45/122,069.18 = 22,216.71/x
  3. Step 3: Cross multiply
    81,379.45x = 122,069.18 × 22,216.71
  4. Step 4: Simplify right side
    81,379.45x = 2,711,974,850.57
  5. Step 5: Solve for x
    x = 2,711,974,850.57/81,379.45
  6. Step 6: Final answer
    x = 33,325.06

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1.5x scale

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.