Home / 90,410.58-124,770.54-50,121.78

Finding the Fourth Proportional to 90,410.58, 124,770.54 and 50,121.78

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Solution

The fourth proportional to 90,410.58, 124,770.54 and 50,121.78 is: 69,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.58 : 124,770.54 = 50,121.78 : x
  2. Step 2: Convert to fraction form
    90,410.58/124,770.54 = 50,121.78/x
  3. Step 3: Cross multiply
    90,410.58x = 124,770.54 × 50,121.78
  4. Step 4: Simplify right side
    90,410.58x = 6,253,721,556.36
  5. Step 5: Solve for x
    x = 6,253,721,556.36/90,410.58
  6. Step 6: Final answer
    x = 69,170.24

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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.