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Finding the Fourth Proportional to 80,487.87, 111,050.74 and 50,303.85

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Solution

The fourth proportional to 80,487.87, 111,050.74 and 50,303.85 is: 69,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.87 : 111,050.74 = 50,303.85 : x
  2. Step 2: Convert to fraction form
    80,487.87/111,050.74 = 50,303.85/x
  3. Step 3: Cross multiply
    80,487.87x = 111,050.74 × 50,303.85
  4. Step 4: Simplify right side
    80,487.87x = 5,586,279,767.35
  5. Step 5: Solve for x
    x = 5,586,279,767.35/80,487.87
  6. Step 6: Final answer
    x = 69,405.24

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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.