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Finding the Fourth Proportional to 84,538.92, 126,829.44 and 25,375.68

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Solution

The fourth proportional to 84,538.92, 126,829.44 and 25,375.68 is: 38,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,538.92 : 126,829.44 = 25,375.68 : x
  2. Step 2: Convert to fraction form
    84,538.92/126,829.44 = 25,375.68/x
  3. Step 3: Cross multiply
    84,538.92x = 126,829.44 × 25,375.68
  4. Step 4: Simplify right side
    84,538.92x = 3,218,383,284.02
  5. Step 5: Solve for x
    x = 3,218,383,284.02/84,538.92
  6. Step 6: Final answer
    x = 38,069.84

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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.