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Finding the Fourth Proportional to 51,650.44, 71,279.94 and 40,453

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Solution

The fourth proportional to 51,650.44, 71,279.94 and 40,453 is: 55,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,650.44 : 71,279.94 = 40,453 : x
  2. Step 2: Convert to fraction form
    51,650.44/71,279.94 = 40,453/x
  3. Step 3: Cross multiply
    51,650.44x = 71,279.94 × 40,453
  4. Step 4: Simplify right side
    51,650.44x = 2,883,487,412.82
  5. Step 5: Solve for x
    x = 2,883,487,412.82/51,650.44
  6. Step 6: Final answer
    x = 55,826.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.