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Finding the Fourth Proportional to 84,770.92, 127,105.92 and 28,597.21

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Solution

The fourth proportional to 84,770.92, 127,105.92 and 28,597.21 is: 42,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,770.92 : 127,105.92 = 28,597.21 : x
  2. Step 2: Convert to fraction form
    84,770.92/127,105.92 = 28,597.21/x
  3. Step 3: Cross multiply
    84,770.92x = 127,105.92 × 28,597.21
  4. Step 4: Simplify right side
    84,770.92x = 3,634,874,686.48
  5. Step 5: Solve for x
    x = 3,634,874,686.48/84,770.92
  6. Step 6: Final answer
    x = 42,878.79

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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.