Home / 69,478.54-95,872.68-39,263.78

Finding the Fourth Proportional to 69,478.54, 95,872.68 and 39,263.78

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Solution

The fourth proportional to 69,478.54, 95,872.68 and 39,263.78 is: 54,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,478.54 : 95,872.68 = 39,263.78 : x
  2. Step 2: Convert to fraction form
    69,478.54/95,872.68 = 39,263.78/x
  3. Step 3: Cross multiply
    69,478.54x = 95,872.68 × 39,263.78
  4. Step 4: Simplify right side
    69,478.54x = 3,764,324,055.21
  5. Step 5: Solve for x
    x = 3,764,324,055.21/69,478.54
  6. Step 6: Final answer
    x = 54,179.67

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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.