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Finding the Fourth Proportional to 79,789.70, 119,702.10 and 23,634.20

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Solution

The fourth proportional to 79,789.70, 119,702.10 and 23,634.20 is: 35,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.70 : 119,702.10 = 23,634.20 : x
  2. Step 2: Convert to fraction form
    79,789.70/119,702.10 = 23,634.20/x
  3. Step 3: Cross multiply
    79,789.70x = 119,702.10 × 23,634.20
  4. Step 4: Simplify right side
    79,789.70x = 2,829,063,371.82
  5. Step 5: Solve for x
    x = 2,829,063,371.82/79,789.70
  6. Step 6: Final answer
    x = 35,456.50

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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.