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Finding the Fourth Proportional to 87,650.37, 120,966.02 and 51,851.90

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Solution

The fourth proportional to 87,650.37, 120,966.02 and 51,851.90 is: 71,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,650.37 : 120,966.02 = 51,851.90 : x
  2. Step 2: Convert to fraction form
    87,650.37/120,966.02 = 51,851.90/x
  3. Step 3: Cross multiply
    87,650.37x = 120,966.02 × 51,851.90
  4. Step 4: Simplify right side
    87,650.37x = 6,272,317,108.35
  5. Step 5: Solve for x
    x = 6,272,317,108.35/87,650.37
  6. Step 6: Final answer
    x = 71,560.65

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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.