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Finding the Third Proportional to 47,640 and 90,954

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Solution

The third proportional to 47,640 and 90,954 is: 173,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,640 : 90,954 = 90,954 : x
  2. Step 2: Convert to fraction form
    47,640/90,954 = 90,954/x
  3. Step 3: Cross multiply
    47,640x = 90,954 × 90,954
  4. Step 4: Simplify right side
    47,640x = 8,272,630,116
  5. Step 5: Solve for x
    x = 8,272,630,116/47,640
  6. Step 6: Final answer
    x = 173,648.83

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.