Home / 89,081.20-122,932-48,794.60

Finding the Fourth Proportional to 89,081.20, 122,932 and 48,794.60

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Solution

The fourth proportional to 89,081.20, 122,932 and 48,794.60 is: 67,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,081.20 : 122,932 = 48,794.60 : x
  2. Step 2: Convert to fraction form
    89,081.20/122,932 = 48,794.60/x
  3. Step 3: Cross multiply
    89,081.20x = 122,932 × 48,794.60
  4. Step 4: Simplify right side
    89,081.20x = 5,998,417,767.20
  5. Step 5: Solve for x
    x = 5,998,417,767.20/89,081.20
  6. Step 6: Final answer
    x = 67,336.52

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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.