Home / 90,020.50-124,226.82-49,735.96

Finding the Fourth Proportional to 90,020.50, 124,226.82 and 49,735.96

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Solution

The fourth proportional to 90,020.50, 124,226.82 and 49,735.96 is: 68,634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,020.50 : 124,226.82 = 49,735.96 : x
  2. Step 2: Convert to fraction form
    90,020.50/124,226.82 = 49,735.96/x
  3. Step 3: Cross multiply
    90,020.50x = 124,226.82 × 49,735.96
  4. Step 4: Simplify right side
    90,020.50x = 6,178,540,150.45
  5. Step 5: Solve for x
    x = 6,178,540,150.45/90,020.50
  6. Step 6: Final answer
    x = 68,634.81

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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.