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Finding the Fourth Proportional to 73,561.50, 110,343.87 and 18,157.50

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Solution

The fourth proportional to 73,561.50, 110,343.87 and 18,157.50 is: 27,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,561.50 : 110,343.87 = 18,157.50 : x
  2. Step 2: Convert to fraction form
    73,561.50/110,343.87 = 18,157.50/x
  3. Step 3: Cross multiply
    73,561.50x = 110,343.87 × 18,157.50
  4. Step 4: Simplify right side
    73,561.50x = 2,003,568,819.53
  5. Step 5: Solve for x
    x = 2,003,568,819.53/73,561.50
  6. Step 6: Final answer
    x = 27,236.65

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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.