Home / 215,388.20-323,057.72-57,628.82

Finding the Fourth Proportional to 215,388.20, 323,057.72 and 57,628.82

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Solution

The fourth proportional to 215,388.20, 323,057.72 and 57,628.82 is: 86,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,388.20 : 323,057.72 = 57,628.82 : x
  2. Step 2: Convert to fraction form
    215,388.20/323,057.72 = 57,628.82/x
  3. Step 3: Cross multiply
    215,388.20x = 323,057.72 × 57,628.82
  4. Step 4: Simplify right side
    215,388.20x = 18,617,435,195.49
  5. Step 5: Solve for x
    x = 18,617,435,195.49/215,388.20
  6. Step 6: Final answer
    x = 86,436.65

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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.