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Finding the Fourth Proportional to 84,843.83, 127,265.61 and 21,663.92

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Solution

The fourth proportional to 84,843.83, 127,265.61 and 21,663.92 is: 32,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,843.83 : 127,265.61 = 21,663.92 : x
  2. Step 2: Convert to fraction form
    84,843.83/127,265.61 = 21,663.92/x
  3. Step 3: Cross multiply
    84,843.83x = 127,265.61 × 21,663.92
  4. Step 4: Simplify right side
    84,843.83x = 2,757,071,993.79
  5. Step 5: Solve for x
    x = 2,757,071,993.79/84,843.83
  6. Step 6: Final answer
    x = 32,495.85

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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.