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Finding the Fourth Proportional to 67,286, 100,927.08 and 20,532.08

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Solution

The fourth proportional to 67,286, 100,927.08 and 20,532.08 is: 30,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,286 : 100,927.08 = 20,532.08 : x
  2. Step 2: Convert to fraction form
    67,286/100,927.08 = 20,532.08/x
  3. Step 3: Cross multiply
    67,286x = 100,927.08 × 20,532.08
  4. Step 4: Simplify right side
    67,286x = 2,072,242,880.73
  5. Step 5: Solve for x
    x = 2,072,242,880.73/67,286
  6. Step 6: Final answer
    x = 30,797.53

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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.