Home / 90,049.85-124,258.20-49,761.21

Finding the Fourth Proportional to 90,049.85, 124,258.20 and 49,761.21

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Solution

The fourth proportional to 90,049.85, 124,258.20 and 49,761.21 is: 68,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,049.85 : 124,258.20 = 49,761.21 : x
  2. Step 2: Convert to fraction form
    90,049.85/124,258.20 = 49,761.21/x
  3. Step 3: Cross multiply
    90,049.85x = 124,258.20 × 49,761.21
  4. Step 4: Simplify right side
    90,049.85x = 6,183,238,594.22
  5. Step 5: Solve for x
    x = 6,183,238,594.22/90,049.85
  6. Step 6: Final answer
    x = 68,664.62

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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.