Home / 90,609.35-125,040.78-50,329.13

Finding the Fourth Proportional to 90,609.35, 125,040.78 and 50,329.13

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Solution

The fourth proportional to 90,609.35, 125,040.78 and 50,329.13 is: 69,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609.35 : 125,040.78 = 50,329.13 : x
  2. Step 2: Convert to fraction form
    90,609.35/125,040.78 = 50,329.13/x
  3. Step 3: Cross multiply
    90,609.35x = 125,040.78 × 50,329.13
  4. Step 4: Simplify right side
    90,609.35x = 6,293,193,046.72
  5. Step 5: Solve for x
    x = 6,293,193,046.72/90,609.35
  6. Step 6: Final answer
    x = 69,454.13

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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.