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Finding the Fourth Proportional to 69,382.80, 95,748.56 and 39,168.48

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Solution

The fourth proportional to 69,382.80, 95,748.56 and 39,168.48 is: 54,052.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,382.80 : 95,748.56 = 39,168.48 : x
  2. Step 2: Convert to fraction form
    69,382.80/95,748.56 = 39,168.48/x
  3. Step 3: Cross multiply
    69,382.80x = 95,748.56 × 39,168.48
  4. Step 4: Simplify right side
    69,382.80x = 3,750,325,557.39
  5. Step 5: Solve for x
    x = 3,750,325,557.39/69,382.80
  6. Step 6: Final answer
    x = 54,052.67

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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.