Home / 50,137.56-69,178.62-28,620.45

Finding the Fourth Proportional to 50,137.56, 69,178.62 and 28,620.45

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Solution

The fourth proportional to 50,137.56, 69,178.62 and 28,620.45 is: 39,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,137.56 : 69,178.62 = 28,620.45 : x
  2. Step 2: Convert to fraction form
    50,137.56/69,178.62 = 28,620.45/x
  3. Step 3: Cross multiply
    50,137.56x = 69,178.62 × 28,620.45
  4. Step 4: Simplify right side
    50,137.56x = 1,979,923,234.78
  5. Step 5: Solve for x
    x = 1,979,923,234.78/50,137.56
  6. Step 6: Final answer
    x = 39,489.82

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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.