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Finding the Fourth Proportional to 67,441.08, 101,157.96 and 20,694

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Solution

The fourth proportional to 67,441.08, 101,157.96 and 20,694 is: 31,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,441.08 : 101,157.96 = 20,694 : x
  2. Step 2: Convert to fraction form
    67,441.08/101,157.96 = 20,694/x
  3. Step 3: Cross multiply
    67,441.08x = 101,157.96 × 20,694
  4. Step 4: Simplify right side
    67,441.08x = 2,093,362,824.24
  5. Step 5: Solve for x
    x = 2,093,362,824.24/67,441.08
  6. Step 6: Final answer
    x = 31,039.88

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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.