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Finding the Fourth Proportional to 69,012.87, 95,241.51 and 38,389.20

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Solution

The fourth proportional to 69,012.87, 95,241.51 and 38,389.20 is: 52,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.87 : 95,241.51 = 38,389.20 : x
  2. Step 2: Convert to fraction form
    69,012.87/95,241.51 = 38,389.20/x
  3. Step 3: Cross multiply
    69,012.87x = 95,241.51 × 38,389.20
  4. Step 4: Simplify right side
    69,012.87x = 3,656,245,375.69
  5. Step 5: Solve for x
    x = 3,656,245,375.69/69,012.87
  6. Step 6: Final answer
    x = 52,979.18

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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.