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Finding the Fourth Proportional to 84,593.70, 126,892.58 and 28,435.73

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Solution

The fourth proportional to 84,593.70, 126,892.58 and 28,435.73 is: 42,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,593.70 : 126,892.58 = 28,435.73 : x
  2. Step 2: Convert to fraction form
    84,593.70/126,892.58 = 28,435.73/x
  3. Step 3: Cross multiply
    84,593.70x = 126,892.58 × 28,435.73
  4. Step 4: Simplify right side
    84,593.70x = 3,608,282,367.24
  5. Step 5: Solve for x
    x = 3,608,282,367.24/84,593.70
  6. Step 6: Final answer
    x = 42,654.27

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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.