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Finding the Fourth Proportional to 80,580.60, 120,914.10 and 33,838.20

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Solution

The fourth proportional to 80,580.60, 120,914.10 and 33,838.20 is: 50,775.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.60 : 120,914.10 = 33,838.20 : x
  2. Step 2: Convert to fraction form
    80,580.60/120,914.10 = 33,838.20/x
  3. Step 3: Cross multiply
    80,580.60x = 120,914.10 × 33,838.20
  4. Step 4: Simplify right side
    80,580.60x = 4,091,515,498.62
  5. Step 5: Solve for x
    x = 4,091,515,498.62/80,580.60
  6. Step 6: Final answer
    x = 50,775.44

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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.