Home / 81,435.47-122,153.22-22,266.65

Finding the Fourth Proportional to 81,435.47, 122,153.22 and 22,266.65

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Solution

The fourth proportional to 81,435.47, 122,153.22 and 22,266.65 is: 33,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,435.47 : 122,153.22 = 22,266.65 : x
  2. Step 2: Convert to fraction form
    81,435.47/122,153.22 = 22,266.65/x
  3. Step 3: Cross multiply
    81,435.47x = 122,153.22 × 22,266.65
  4. Step 4: Simplify right side
    81,435.47x = 2,719,942,385.35
  5. Step 5: Solve for x
    x = 2,719,942,385.35/81,435.47
  6. Step 6: Final answer
    x = 33,399.97

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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.