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Finding the Fourth Proportional to 50,069.87, 75,077.87 and 20,069.05

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Solution

The fourth proportional to 50,069.87, 75,077.87 and 20,069.05 is: 30,092.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,069.87 : 75,077.87 = 20,069.05 : x
  2. Step 2: Convert to fraction form
    50,069.87/75,077.87 = 20,069.05/x
  3. Step 3: Cross multiply
    50,069.87x = 75,077.87 × 20,069.05
  4. Step 4: Simplify right side
    50,069.87x = 1,506,741,426.58
  5. Step 5: Solve for x
    x = 1,506,741,426.58/50,069.87
  6. Step 6: Final answer
    x = 30,092.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.