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Finding the Fourth Proportional to 84,676.92, 127,015.38 and 28,512.33

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Solution

The fourth proportional to 84,676.92, 127,015.38 and 28,512.33 is: 42,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,676.92 : 127,015.38 = 28,512.33 : x
  2. Step 2: Convert to fraction form
    84,676.92/127,015.38 = 28,512.33/x
  3. Step 3: Cross multiply
    84,676.92x = 127,015.38 × 28,512.33
  4. Step 4: Simplify right side
    84,676.92x = 3,621,504,244.94
  5. Step 5: Solve for x
    x = 3,621,504,244.94/84,676.92
  6. Step 6: Final answer
    x = 42,768.49

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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.