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Finding the Fourth Proportional to 80,369.64, 120,595.55 and 33,021.09

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Solution

The fourth proportional to 80,369.64, 120,595.55 and 33,021.09 is: 49,548.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,369.64 : 120,595.55 = 33,021.09 : x
  2. Step 2: Convert to fraction form
    80,369.64/120,595.55 = 33,021.09/x
  3. Step 3: Cross multiply
    80,369.64x = 120,595.55 × 33,021.09
  4. Step 4: Simplify right side
    80,369.64x = 3,982,196,345.04
  5. Step 5: Solve for x
    x = 3,982,196,345.04/80,369.64
  6. Step 6: Final answer
    x = 49,548.52

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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.