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Finding the Fourth Proportional to 85,255.92, 117,650.84 and 49,443.64

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Solution

The fourth proportional to 85,255.92, 117,650.84 and 49,443.64 is: 68,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,255.92 : 117,650.84 = 49,443.64 : x
  2. Step 2: Convert to fraction form
    85,255.92/117,650.84 = 49,443.64/x
  3. Step 3: Cross multiply
    85,255.92x = 117,650.84 × 49,443.64
  4. Step 4: Simplify right side
    85,255.92x = 5,817,085,778.66
  5. Step 5: Solve for x
    x = 5,817,085,778.66/85,255.92
  6. Step 6: Final answer
    x = 68,230.87

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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.