Home / 81,385.74-122,069.34-22,226.22

Finding the Fourth Proportional to 81,385.74, 122,069.34 and 22,226.22

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Solution

The fourth proportional to 81,385.74, 122,069.34 and 22,226.22 is: 33,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,385.74 : 122,069.34 = 22,226.22 : x
  2. Step 2: Convert to fraction form
    81,385.74/122,069.34 = 22,226.22/x
  3. Step 3: Cross multiply
    81,385.74x = 122,069.34 × 22,226.22
  4. Step 4: Simplify right side
    81,385.74x = 2,713,140,006.09
  5. Step 5: Solve for x
    x = 2,713,140,006.09/81,385.74
  6. Step 6: Final answer
    x = 33,336.80

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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.