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Finding the Fourth Proportional to 79,179.39, 109,267.70 and 43,369.47

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Solution

The fourth proportional to 79,179.39, 109,267.70 and 43,369.47 is: 59,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.39 : 109,267.70 = 43,369.47 : x
  2. Step 2: Convert to fraction form
    79,179.39/109,267.70 = 43,369.47/x
  3. Step 3: Cross multiply
    79,179.39x = 109,267.70 × 43,369.47
  4. Step 4: Simplify right side
    79,179.39x = 4,738,882,020.27
  5. Step 5: Solve for x
    x = 4,738,882,020.27/79,179.39
  6. Step 6: Final answer
    x = 59,849.94

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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.