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Finding the Fourth Proportional to 84,481.82, 126,750.88 and 28,327.48

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Solution

The fourth proportional to 84,481.82, 126,750.88 and 28,327.48 is: 42,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.82 : 126,750.88 = 28,327.48 : x
  2. Step 2: Convert to fraction form
    84,481.82/126,750.88 = 28,327.48/x
  3. Step 3: Cross multiply
    84,481.82x = 126,750.88 × 28,327.48
  4. Step 4: Simplify right side
    84,481.82x = 3,590,533,018.18
  5. Step 5: Solve for x
    x = 3,590,533,018.18/84,481.82
  6. Step 6: Final answer
    x = 42,500.66

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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.