Home / 274,789.24-412,242.64-85,245.49

Finding the Fourth Proportional to 274,789.24, 412,242.64 and 85,245.49

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Solution

The fourth proportional to 274,789.24, 412,242.64 and 85,245.49 is: 127,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,789.24 : 412,242.64 = 85,245.49 : x
  2. Step 2: Convert to fraction form
    274,789.24/412,242.64 = 85,245.49/x
  3. Step 3: Cross multiply
    274,789.24x = 412,242.64 × 85,245.49
  4. Step 4: Simplify right side
    274,789.24x = 35,141,826,147.88
  5. Step 5: Solve for x
    x = 35,141,826,147.88/274,789.24
  6. Step 6: Final answer
    x = 127,886.47

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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.