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Finding the Fourth Proportional to 81,477.35, 122,211.46 and 22,308.67

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Solution

The fourth proportional to 81,477.35, 122,211.46 and 22,308.67 is: 33,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,477.35 : 122,211.46 = 22,308.67 : x
  2. Step 2: Convert to fraction form
    81,477.35/122,211.46 = 22,308.67/x
  3. Step 3: Cross multiply
    81,477.35x = 122,211.46 × 22,308.67
  4. Step 4: Simplify right side
    81,477.35x = 2,726,375,131.36
  5. Step 5: Solve for x
    x = 2,726,375,131.36/81,477.35
  6. Step 6: Final answer
    x = 33,461.76

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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.