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Finding the Fourth Proportional to 66,680.92, 100,021.52 and 27,238.06

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Solution

The fourth proportional to 66,680.92, 100,021.52 and 27,238.06 is: 40,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,680.92 : 100,021.52 = 27,238.06 : x
  2. Step 2: Convert to fraction form
    66,680.92/100,021.52 = 27,238.06/x
  3. Step 3: Cross multiply
    66,680.92x = 100,021.52 × 27,238.06
  4. Step 4: Simplify right side
    66,680.92x = 2,724,392,163.05
  5. Step 5: Solve for x
    x = 2,724,392,163.05/66,680.92
  6. Step 6: Final answer
    x = 40,857.15

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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.