Home / 90,121.06-124,364.86-49,833.78

Finding the Fourth Proportional to 90,121.06, 124,364.86 and 49,833.78

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Solution

The fourth proportional to 90,121.06, 124,364.86 and 49,833.78 is: 68,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.06 : 124,364.86 = 49,833.78 : x
  2. Step 2: Convert to fraction form
    90,121.06/124,364.86 = 49,833.78/x
  3. Step 3: Cross multiply
    90,121.06x = 124,364.86 × 49,833.78
  4. Step 4: Simplify right side
    90,121.06x = 6,197,571,072.97
  5. Step 5: Solve for x
    x = 6,197,571,072.97/90,121.06
  6. Step 6: Final answer
    x = 68,769.40

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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.