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Finding the Fourth Proportional to 80,239.69, 110,732.49 and 43,942.66

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Solution

The fourth proportional to 80,239.69, 110,732.49 and 43,942.66 is: 60,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,239.69 : 110,732.49 = 43,942.66 : x
  2. Step 2: Convert to fraction form
    80,239.69/110,732.49 = 43,942.66/x
  3. Step 3: Cross multiply
    80,239.69x = 110,732.49 × 43,942.66
  4. Step 4: Simplify right side
    80,239.69x = 4,865,880,159.02
  5. Step 5: Solve for x
    x = 4,865,880,159.02/80,239.69
  6. Step 6: Final answer
    x = 60,641.81

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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.