Home / 90,635.97-125,081.18-62,015.65

Finding the Fourth Proportional to 90,635.97, 125,081.18 and 62,015.65

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Solution

The fourth proportional to 90,635.97, 125,081.18 and 62,015.65 is: 85,584.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.97 : 125,081.18 = 62,015.65 : x
  2. Step 2: Convert to fraction form
    90,635.97/125,081.18 = 62,015.65/x
  3. Step 3: Cross multiply
    90,635.97x = 125,081.18 × 62,015.65
  4. Step 4: Simplify right side
    90,635.97x = 7,756,990,370.39
  5. Step 5: Solve for x
    x = 7,756,990,370.39/90,635.97
  6. Step 6: Final answer
    x = 85,584.02

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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.