Home / 87,298.75-120,472.28-49,573

Finding the Fourth Proportional to 87,298.75, 120,472.28 and 49,573

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Solution

The fourth proportional to 87,298.75, 120,472.28 and 49,573 is: 68,410.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.75 : 120,472.28 = 49,573 : x
  2. Step 2: Convert to fraction form
    87,298.75/120,472.28 = 49,573/x
  3. Step 3: Cross multiply
    87,298.75x = 120,472.28 × 49,573
  4. Step 4: Simplify right side
    87,298.75x = 5,972,172,336.44
  5. Step 5: Solve for x
    x = 5,972,172,336.44/87,298.75
  6. Step 6: Final answer
    x = 68,410.74

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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.