Home / 83,876.25-125,814.38-21,546.75

Finding the Fourth Proportional to 83,876.25, 125,814.38 and 21,546.75

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Solution

The fourth proportional to 83,876.25, 125,814.38 and 21,546.75 is: 32,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,876.25 : 125,814.38 = 21,546.75 : x
  2. Step 2: Convert to fraction form
    83,876.25/125,814.38 = 21,546.75/x
  3. Step 3: Cross multiply
    83,876.25x = 125,814.38 × 21,546.75
  4. Step 4: Simplify right side
    83,876.25x = 2,710,890,992.27
  5. Step 5: Solve for x
    x = 2,710,890,992.27/83,876.25
  6. Step 6: Final answer
    x = 32,320.13

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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.