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Finding the Fourth Proportional to 85,183.92, 127,612.11 and 47,630.10

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Solution

The fourth proportional to 85,183.92, 127,612.11 and 47,630.10 is: 71,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,183.92 : 127,612.11 = 47,630.10 : x
  2. Step 2: Convert to fraction form
    85,183.92/127,612.11 = 47,630.10/x
  3. Step 3: Cross multiply
    85,183.92x = 127,612.11 × 47,630.10
  4. Step 4: Simplify right side
    85,183.92x = 6,078,177,560.51
  5. Step 5: Solve for x
    x = 6,078,177,560.51/85,183.92
  6. Step 6: Final answer
    x = 71,353.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.