Home / 84,269.52-126,404.28-21,940.08

Finding the Fourth Proportional to 84,269.52, 126,404.28 and 21,940.08

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Solution

The fourth proportional to 84,269.52, 126,404.28 and 21,940.08 is: 32,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,269.52 : 126,404.28 = 21,940.08 : x
  2. Step 2: Convert to fraction form
    84,269.52/126,404.28 = 21,940.08/x
  3. Step 3: Cross multiply
    84,269.52x = 126,404.28 × 21,940.08
  4. Step 4: Simplify right side
    84,269.52x = 2,773,320,015.54
  5. Step 5: Solve for x
    x = 2,773,320,015.54/84,269.52
  6. Step 6: Final answer
    x = 32,910.12

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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.