Home / 90,255.36-135,404.16-27,922.56

Finding the Fourth Proportional to 90,255.36, 135,404.16 and 27,922.56

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Solution

The fourth proportional to 90,255.36, 135,404.16 and 27,922.56 is: 41,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,255.36 : 135,404.16 = 27,922.56 : x
  2. Step 2: Convert to fraction form
    90,255.36/135,404.16 = 27,922.56/x
  3. Step 3: Cross multiply
    90,255.36x = 135,404.16 × 27,922.56
  4. Step 4: Simplify right side
    90,255.36x = 3,780,830,781.85
  5. Step 5: Solve for x
    x = 3,780,830,781.85/90,255.36
  6. Step 6: Final answer
    x = 41,890.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.