Home / 90,743.54-125,220.35-50,456.57

Finding the Fourth Proportional to 90,743.54, 125,220.35 and 50,456.57

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Solution

The fourth proportional to 90,743.54, 125,220.35 and 50,456.57 is: 69,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,743.54 : 125,220.35 = 50,456.57 : x
  2. Step 2: Convert to fraction form
    90,743.54/125,220.35 = 50,456.57/x
  3. Step 3: Cross multiply
    90,743.54x = 125,220.35 × 50,456.57
  4. Step 4: Simplify right side
    90,743.54x = 6,318,189,102.92
  5. Step 5: Solve for x
    x = 6,318,189,102.92/90,743.54
  6. Step 6: Final answer
    x = 69,626.87

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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.