Home / 81,427.42-122,141.25-22,263.61

Finding the Fourth Proportional to 81,427.42, 122,141.25 and 22,263.61

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Solution

The fourth proportional to 81,427.42, 122,141.25 and 22,263.61 is: 33,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.42 : 122,141.25 = 22,263.61 : x
  2. Step 2: Convert to fraction form
    81,427.42/122,141.25 = 22,263.61/x
  3. Step 3: Cross multiply
    81,427.42x = 122,141.25 × 22,263.61
  4. Step 4: Simplify right side
    81,427.42x = 2,719,305,154.91
  5. Step 5: Solve for x
    x = 2,719,305,154.91/81,427.42
  6. Step 6: Final answer
    x = 33,395.45

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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.