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Finding the Fourth Proportional to 69,439.63, 95,824.87 and 39,227.71

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Solution

The fourth proportional to 69,439.63, 95,824.87 and 39,227.71 is: 54,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,439.63 : 95,824.87 = 39,227.71 : x
  2. Step 2: Convert to fraction form
    69,439.63/95,824.87 = 39,227.71/x
  3. Step 3: Cross multiply
    69,439.63x = 95,824.87 × 39,227.71
  4. Step 4: Simplify right side
    69,439.63x = 3,758,990,211.15
  5. Step 5: Solve for x
    x = 3,758,990,211.15/69,439.63
  6. Step 6: Final answer
    x = 54,133.21

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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.