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Finding the Fourth Proportional to 66,913.10, 100,369.83 and 22,571

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Solution

The fourth proportional to 66,913.10, 100,369.83 and 22,571 is: 33,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.10 : 100,369.83 = 22,571 : x
  2. Step 2: Convert to fraction form
    66,913.10/100,369.83 = 22,571/x
  3. Step 3: Cross multiply
    66,913.10x = 100,369.83 × 22,571
  4. Step 4: Simplify right side
    66,913.10x = 2,265,447,432.93
  5. Step 5: Solve for x
    x = 2,265,447,432.93/66,913.10
  6. Step 6: Final answer
    x = 33,856.56

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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.