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Finding the Fourth Proportional to 81,395.33, 122,073.35 and 22,231.31

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Solution

The fourth proportional to 81,395.33, 122,073.35 and 22,231.31 is: 33,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395.33 : 122,073.35 = 22,231.31 : x
  2. Step 2: Convert to fraction form
    81,395.33/122,073.35 = 22,231.31/x
  3. Step 3: Cross multiply
    81,395.33x = 122,073.35 × 22,231.31
  4. Step 4: Simplify right side
    81,395.33x = 2,713,849,765.07
  5. Step 5: Solve for x
    x = 2,713,849,765.07/81,395.33
  6. Step 6: Final answer
    x = 33,341.59

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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.