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Finding the Fourth Proportional to 69,302.67, 103,966.83 and 21,929.67

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Solution

The fourth proportional to 69,302.67, 103,966.83 and 21,929.67 is: 32,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,302.67 : 103,966.83 = 21,929.67 : x
  2. Step 2: Convert to fraction form
    69,302.67/103,966.83 = 21,929.67/x
  3. Step 3: Cross multiply
    69,302.67x = 103,966.83 × 21,929.67
  4. Step 4: Simplify right side
    69,302.67x = 2,279,958,272.85
  5. Step 5: Solve for x
    x = 2,279,958,272.85/69,302.67
  6. Step 6: Final answer
    x = 32,898.56

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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.