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Finding the Fourth Proportional to 80,809, 121,226.64 and 23,888.68

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Solution

The fourth proportional to 80,809, 121,226.64 and 23,888.68 is: 35,836.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,809 : 121,226.64 = 23,888.68 : x
  2. Step 2: Convert to fraction form
    80,809/121,226.64 = 23,888.68/x
  3. Step 3: Cross multiply
    80,809x = 121,226.64 × 23,888.68
  4. Step 4: Simplify right side
    80,809x = 2,895,944,410.44
  5. Step 5: Solve for x
    x = 2,895,944,410.44/80,809
  6. Step 6: Final answer
    x = 35,836.90

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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.