Home / 90,667.20-125,118.24-50,379.92

Finding the Fourth Proportional to 90,667.20, 125,118.24 and 50,379.92

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Solution

The fourth proportional to 90,667.20, 125,118.24 and 50,379.92 is: 69,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,667.20 : 125,118.24 = 50,379.92 : x
  2. Step 2: Convert to fraction form
    90,667.20/125,118.24 = 50,379.92/x
  3. Step 3: Cross multiply
    90,667.20x = 125,118.24 × 50,379.92
  4. Step 4: Simplify right side
    90,667.20x = 6,303,446,921.74
  5. Step 5: Solve for x
    x = 6,303,446,921.74/90,667.20
  6. Step 6: Final answer
    x = 69,522.90

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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.