Home / 70,400.75-105,512.42-50,305.56

Finding the Fourth Proportional to 70,400.75, 105,512.42 and 50,305.56

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Solution

The fourth proportional to 70,400.75, 105,512.42 and 50,305.56 is: 75,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.75 : 105,512.42 = 50,305.56 : x
  2. Step 2: Convert to fraction form
    70,400.75/105,512.42 = 50,305.56/x
  3. Step 3: Cross multiply
    70,400.75x = 105,512.42 × 50,305.56
  4. Step 4: Simplify right side
    70,400.75x = 5,307,861,105.15
  5. Step 5: Solve for x
    x = 5,307,861,105.15/70,400.75
  6. Step 6: Final answer
    x = 75,394.96

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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.