Home / 90,019.14-135,109.92-47,934.38

Finding the Fourth Proportional to 90,019.14, 135,109.92 and 47,934.38

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Solution

The fourth proportional to 90,019.14, 135,109.92 and 47,934.38 is: 71,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,019.14 : 135,109.92 = 47,934.38 : x
  2. Step 2: Convert to fraction form
    90,019.14/135,109.92 = 47,934.38/x
  3. Step 3: Cross multiply
    90,019.14x = 135,109.92 × 47,934.38
  4. Step 4: Simplify right side
    90,019.14x = 6,476,410,247.05
  5. Step 5: Solve for x
    x = 6,476,410,247.05/90,019.14
  6. Step 6: Final answer
    x = 71,944.81

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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.