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Finding the Fourth Proportional to 87,600.71, 120,889.10 and 49,874.96

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Solution

The fourth proportional to 87,600.71, 120,889.10 and 49,874.96 is: 68,827.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.71 : 120,889.10 = 49,874.96 : x
  2. Step 2: Convert to fraction form
    87,600.71/120,889.10 = 49,874.96/x
  3. Step 3: Cross multiply
    87,600.71x = 120,889.10 × 49,874.96
  4. Step 4: Simplify right side
    87,600.71x = 6,029,339,026.94
  5. Step 5: Solve for x
    x = 6,029,339,026.94/87,600.71
  6. Step 6: Final answer
    x = 68,827.51

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1.5x scale

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.