Home / 80,179.25-120,266.39-38,089.62

Finding the Fourth Proportional to 80,179.25, 120,266.39 and 38,089.62

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Solution

The fourth proportional to 80,179.25, 120,266.39 and 38,089.62 is: 57,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.25 : 120,266.39 = 38,089.62 : x
  2. Step 2: Convert to fraction form
    80,179.25/120,266.39 = 38,089.62/x
  3. Step 3: Cross multiply
    80,179.25x = 120,266.39 × 38,089.62
  4. Step 4: Simplify right side
    80,179.25x = 4,580,901,093.87
  5. Step 5: Solve for x
    x = 4,580,901,093.87/80,179.25
  6. Step 6: Final answer
    x = 57,133.25

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Double scale
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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.