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Finding the Fourth Proportional to 81,459.38, 122,188.98 and 22,295.54

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Solution

The fourth proportional to 81,459.38, 122,188.98 and 22,295.54 is: 33,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459.38 : 122,188.98 = 22,295.54 : x
  2. Step 2: Convert to fraction form
    81,459.38/122,188.98 = 22,295.54/x
  3. Step 3: Cross multiply
    81,459.38x = 122,188.98 × 22,295.54
  4. Step 4: Simplify right side
    81,459.38x = 2,724,269,291.15
  5. Step 5: Solve for x
    x = 2,724,269,291.15/81,459.38
  6. Step 6: Final answer
    x = 33,443.29

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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.