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Finding the Fourth Proportional to 80,342.71, 110,859.91 and 50,123.23

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Solution

The fourth proportional to 80,342.71, 110,859.91 and 50,123.23 is: 69,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,342.71 : 110,859.91 = 50,123.23 : x
  2. Step 2: Convert to fraction form
    80,342.71/110,859.91 = 50,123.23/x
  3. Step 3: Cross multiply
    80,342.71x = 110,859.91 × 50,123.23
  4. Step 4: Simplify right side
    80,342.71x = 5,556,656,766.71
  5. Step 5: Solve for x
    x = 5,556,656,766.71/80,342.71
  6. Step 6: Final answer
    x = 69,161.93

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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.