Home / 90,843.09-125,369.34-50,556.72

Finding the Fourth Proportional to 90,843.09, 125,369.34 and 50,556.72

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Solution

The fourth proportional to 90,843.09, 125,369.34 and 50,556.72 is: 69,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.09 : 125,369.34 = 50,556.72 : x
  2. Step 2: Convert to fraction form
    90,843.09/125,369.34 = 50,556.72/x
  3. Step 3: Cross multiply
    90,843.09x = 125,369.34 × 50,556.72
  4. Step 4: Simplify right side
    90,843.09x = 6,338,262,618.96
  5. Step 5: Solve for x
    x = 6,338,262,618.96/90,843.09
  6. Step 6: Final answer
    x = 69,771.54

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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.