Home / 87,458.32-120,702.72-49,738.24

Finding the Fourth Proportional to 87,458.32, 120,702.72 and 49,738.24

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Solution

The fourth proportional to 87,458.32, 120,702.72 and 49,738.24 is: 68,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.32 : 120,702.72 = 49,738.24 : x
  2. Step 2: Convert to fraction form
    87,458.32/120,702.72 = 49,738.24/x
  3. Step 3: Cross multiply
    87,458.32x = 120,702.72 × 49,738.24
  4. Step 4: Simplify right side
    87,458.32x = 6,003,540,856.01
  5. Step 5: Solve for x
    x = 6,003,540,856.01/87,458.32
  6. Step 6: Final answer
    x = 68,644.59

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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.