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Finding the Fourth Proportional to 81,437.62, 122,154.70 and 22,273.29

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Solution

The fourth proportional to 81,437.62, 122,154.70 and 22,273.29 is: 33,409.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.62 : 122,154.70 = 22,273.29 : x
  2. Step 2: Convert to fraction form
    81,437.62/122,154.70 = 22,273.29/x
  3. Step 3: Cross multiply
    81,437.62x = 122,154.70 × 22,273.29
  4. Step 4: Simplify right side
    81,437.62x = 2,720,787,057.96
  5. Step 5: Solve for x
    x = 2,720,787,057.96/81,437.62
  6. Step 6: Final answer
    x = 33,409.46

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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.