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Finding the Fourth Proportional to 79,149.75, 109,226.54 and 43,339.75

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Solution

The fourth proportional to 79,149.75, 109,226.54 and 43,339.75 is: 59,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149.75 : 109,226.54 = 43,339.75 : x
  2. Step 2: Convert to fraction form
    79,149.75/109,226.54 = 43,339.75/x
  3. Step 3: Cross multiply
    79,149.75x = 109,226.54 × 43,339.75
  4. Step 4: Simplify right side
    79,149.75x = 4,733,850,936.97
  5. Step 5: Solve for x
    x = 4,733,850,936.97/79,149.75
  6. Step 6: Final answer
    x = 59,808.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.