Home / 90,021.97-124,232.82-49,738.33

Finding the Fourth Proportional to 90,021.97, 124,232.82 and 49,738.33

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Solution

The fourth proportional to 90,021.97, 124,232.82 and 49,738.33 is: 68,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.97 : 124,232.82 = 49,738.33 : x
  2. Step 2: Convert to fraction form
    90,021.97/124,232.82 = 49,738.33/x
  3. Step 3: Cross multiply
    90,021.97x = 124,232.82 × 49,738.33
  4. Step 4: Simplify right side
    90,021.97x = 6,179,132,997.99
  5. Step 5: Solve for x
    x = 6,179,132,997.99/90,021.97
  6. Step 6: Final answer
    x = 68,640.28

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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.