Home / 80,214.87-120,298-33,456.81

Finding the Fourth Proportional to 80,214.87, 120,298 and 33,456.81

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Solution

The fourth proportional to 80,214.87, 120,298 and 33,456.81 is: 50,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,214.87 : 120,298 = 33,456.81 : x
  2. Step 2: Convert to fraction form
    80,214.87/120,298 = 33,456.81/x
  3. Step 3: Cross multiply
    80,214.87x = 120,298 × 33,456.81
  4. Step 4: Simplify right side
    80,214.87x = 4,024,787,329.38
  5. Step 5: Solve for x
    x = 4,024,787,329.38/80,214.87
  6. Step 6: Final answer
    x = 50,175.08

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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.