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Finding the Fourth Proportional to 80,137.23, 110,623.40 and 49,937.46

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Solution

The fourth proportional to 80,137.23, 110,623.40 and 49,937.46 is: 68,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,137.23 : 110,623.40 = 49,937.46 : x
  2. Step 2: Convert to fraction form
    80,137.23/110,623.40 = 49,937.46/x
  3. Step 3: Cross multiply
    80,137.23x = 110,623.40 × 49,937.46
  4. Step 4: Simplify right side
    80,137.23x = 5,524,251,612.56
  5. Step 5: Solve for x
    x = 5,524,251,612.56/80,137.23
  6. Step 6: Final answer
    x = 68,934.90

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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.