Home / 69,218.38-103,739.28-33,688.14

Finding the Fourth Proportional to 69,218.38, 103,739.28 and 33,688.14

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Solution

The fourth proportional to 69,218.38, 103,739.28 and 33,688.14 is: 50,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,218.38 : 103,739.28 = 33,688.14 : x
  2. Step 2: Convert to fraction form
    69,218.38/103,739.28 = 33,688.14/x
  3. Step 3: Cross multiply
    69,218.38x = 103,739.28 × 33,688.14
  4. Step 4: Simplify right side
    69,218.38x = 3,494,782,869.44
  5. Step 5: Solve for x
    x = 3,494,782,869.44/69,218.38
  6. Step 6: Final answer
    x = 50,489.23

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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.