Home / 90,667.62-125,121.33-50,380.20

Finding the Fourth Proportional to 90,667.62, 125,121.33 and 50,380.20

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Solution

The fourth proportional to 90,667.62, 125,121.33 and 50,380.20 is: 69,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,667.62 : 125,121.33 = 50,380.20 : x
  2. Step 2: Convert to fraction form
    90,667.62/125,121.33 = 50,380.20/x
  3. Step 3: Cross multiply
    90,667.62x = 125,121.33 × 50,380.20
  4. Step 4: Simplify right side
    90,667.62x = 6,303,637,629.67
  5. Step 5: Solve for x
    x = 6,303,637,629.67/90,667.62
  6. Step 6: Final answer
    x = 69,524.68

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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.