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Finding the Fourth Proportional to 84,694.80, 127,042.20 and 29,296.40

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Solution

The fourth proportional to 84,694.80, 127,042.20 and 29,296.40 is: 43,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,694.80 : 127,042.20 = 29,296.40 : x
  2. Step 2: Convert to fraction form
    84,694.80/127,042.20 = 29,296.40/x
  3. Step 3: Cross multiply
    84,694.80x = 127,042.20 × 29,296.40
  4. Step 4: Simplify right side
    84,694.80x = 3,721,879,108.08
  5. Step 5: Solve for x
    x = 3,721,879,108.08/84,694.80
  6. Step 6: Final answer
    x = 43,944.60

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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.