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Finding the Fourth Proportional to 80,238.87, 110,783.43 and 50,036.40

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Solution

The fourth proportional to 80,238.87, 110,783.43 and 50,036.40 is: 69,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,238.87 : 110,783.43 = 50,036.40 : x
  2. Step 2: Convert to fraction form
    80,238.87/110,783.43 = 50,036.40/x
  3. Step 3: Cross multiply
    80,238.87x = 110,783.43 × 50,036.40
  4. Step 4: Simplify right side
    80,238.87x = 5,543,204,016.85
  5. Step 5: Solve for x
    x = 5,543,204,016.85/80,238.87
  6. Step 6: Final answer
    x = 69,083.77

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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.