Home / 87,608.16-120,869.28-49,872.96

Finding the Fourth Proportional to 87,608.16, 120,869.28 and 49,872.96

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Solution

The fourth proportional to 87,608.16, 120,869.28 and 49,872.96 is: 68,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,608.16 : 120,869.28 = 49,872.96 : x
  2. Step 2: Convert to fraction form
    87,608.16/120,869.28 = 49,872.96/x
  3. Step 3: Cross multiply
    87,608.16x = 120,869.28 × 49,872.96
  4. Step 4: Simplify right side
    87,608.16x = 6,028,108,766.67
  5. Step 5: Solve for x
    x = 6,028,108,766.67/87,608.16
  6. Step 6: Final answer
    x = 68,807.62

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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.