Home / 47,961.72-71,460.36-45,279

Finding the Fourth Proportional to 47,961.72, 71,460.36 and 45,279

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Solution

The fourth proportional to 47,961.72, 71,460.36 and 45,279 is: 67,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,961.72 : 71,460.36 = 45,279 : x
  2. Step 2: Convert to fraction form
    47,961.72/71,460.36 = 45,279/x
  3. Step 3: Cross multiply
    47,961.72x = 71,460.36 × 45,279
  4. Step 4: Simplify right side
    47,961.72x = 3,235,653,640.44
  5. Step 5: Solve for x
    x = 3,235,653,640.44/47,961.72
  6. Step 6: Final answer
    x = 67,463.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.