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Finding the Fourth Proportional to 50,760, 70,049.34 and 28,099.44

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Solution

The fourth proportional to 50,760, 70,049.34 and 28,099.44 is: 38,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,760 : 70,049.34 = 28,099.44 : x
  2. Step 2: Convert to fraction form
    50,760/70,049.34 = 28,099.44/x
  3. Step 3: Cross multiply
    50,760x = 70,049.34 × 28,099.44
  4. Step 4: Simplify right side
    50,760x = 1,968,347,226.37
  5. Step 5: Solve for x
    x = 1,968,347,226.37/50,760
  6. Step 6: Final answer
    x = 38,777.53

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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.