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Finding the Fourth Proportional to 69,300.73, 103,963.91 and 21,927.75

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Solution

The fourth proportional to 69,300.73, 103,963.91 and 21,927.75 is: 32,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,300.73 : 103,963.91 = 21,927.75 : x
  2. Step 2: Convert to fraction form
    69,300.73/103,963.91 = 21,927.75/x
  3. Step 3: Cross multiply
    69,300.73x = 103,963.91 × 21,927.75
  4. Step 4: Simplify right side
    69,300.73x = 2,279,694,107.68
  5. Step 5: Solve for x
    x = 2,279,694,107.68/69,300.73
  6. Step 6: Final answer
    x = 32,895.67

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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.