Home / 89,132.21-122,982.49-50,879.55

Finding the Fourth Proportional to 89,132.21, 122,982.49 and 50,879.55

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Solution

The fourth proportional to 89,132.21, 122,982.49 and 50,879.55 is: 70,202.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,132.21 : 122,982.49 = 50,879.55 : x
  2. Step 2: Convert to fraction form
    89,132.21/122,982.49 = 50,879.55/x
  3. Step 3: Cross multiply
    89,132.21x = 122,982.49 × 50,879.55
  4. Step 4: Simplify right side
    89,132.21x = 6,257,293,749.08
  5. Step 5: Solve for x
    x = 6,257,293,749.08/89,132.21
  6. Step 6: Final answer
    x = 70,202.39

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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.