Home / 90,377.94-124,721.46-50,091.78

Finding the Fourth Proportional to 90,377.94, 124,721.46 and 50,091.78

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Solution

The fourth proportional to 90,377.94, 124,721.46 and 50,091.78 is: 69,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,377.94 : 124,721.46 = 50,091.78 : x
  2. Step 2: Convert to fraction form
    90,377.94/124,721.46 = 50,091.78/x
  3. Step 3: Cross multiply
    90,377.94x = 124,721.46 × 50,091.78
  4. Step 4: Simplify right side
    90,377.94x = 6,247,519,935.60
  5. Step 5: Solve for x
    x = 6,247,519,935.60/90,377.94
  6. Step 6: Final answer
    x = 69,126.60

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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.