Home / 90,228.54-124,512.21-49,942.38

Finding the Fourth Proportional to 90,228.54, 124,512.21 and 49,942.38

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Solution

The fourth proportional to 90,228.54, 124,512.21 and 49,942.38 is: 68,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,228.54 : 124,512.21 = 49,942.38 : x
  2. Step 2: Convert to fraction form
    90,228.54/124,512.21 = 49,942.38/x
  3. Step 3: Cross multiply
    90,228.54x = 124,512.21 × 49,942.38
  4. Step 4: Simplify right side
    90,228.54x = 6,218,436,106.46
  5. Step 5: Solve for x
    x = 6,218,436,106.46/90,228.54
  6. Step 6: Final answer
    x = 68,918.73

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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.