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Finding the Fourth Proportional to 66,908.89, 100,363.38 and 16,992.73

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Solution

The fourth proportional to 66,908.89, 100,363.38 and 16,992.73 is: 25,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908.89 : 100,363.38 = 16,992.73 : x
  2. Step 2: Convert to fraction form
    66,908.89/100,363.38 = 16,992.73/x
  3. Step 3: Cross multiply
    66,908.89x = 100,363.38 × 16,992.73
  4. Step 4: Simplify right side
    66,908.89x = 1,705,447,818.23
  5. Step 5: Solve for x
    x = 1,705,447,818.23/66,908.89
  6. Step 6: Final answer
    x = 25,489.11

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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.