Home / 90,943.22-125,495.19-50,105.54

Finding the Fourth Proportional to 90,943.22, 125,495.19 and 50,105.54

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Solution

The fourth proportional to 90,943.22, 125,495.19 and 50,105.54 is: 69,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,943.22 : 125,495.19 = 50,105.54 : x
  2. Step 2: Convert to fraction form
    90,943.22/125,495.19 = 50,105.54/x
  3. Step 3: Cross multiply
    90,943.22x = 125,495.19 × 50,105.54
  4. Step 4: Simplify right side
    90,943.22x = 6,288,004,262.35
  5. Step 5: Solve for x
    x = 6,288,004,262.35/90,943.22
  6. Step 6: Final answer
    x = 69,142.09

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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.