Home / 87,551.78-120,821.94-49,826.02

Finding the Fourth Proportional to 87,551.78, 120,821.94 and 49,826.02

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Solution

The fourth proportional to 87,551.78, 120,821.94 and 49,826.02 is: 68,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,551.78 : 120,821.94 = 49,826.02 : x
  2. Step 2: Convert to fraction form
    87,551.78/120,821.94 = 49,826.02/x
  3. Step 3: Cross multiply
    87,551.78x = 120,821.94 × 49,826.02
  4. Step 4: Simplify right side
    87,551.78x = 6,020,076,398.88
  5. Step 5: Solve for x
    x = 6,020,076,398.88/87,551.78
  6. Step 6: Final answer
    x = 68,760.18

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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.