Home / 79,821.91-119,751.63-27,231.58

Finding the Fourth Proportional to 79,821.91, 119,751.63 and 27,231.58

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Solution

The fourth proportional to 79,821.91, 119,751.63 and 27,231.58 is: 40,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.91 : 119,751.63 = 27,231.58 : x
  2. Step 2: Convert to fraction form
    79,821.91/119,751.63 = 27,231.58/x
  3. Step 3: Cross multiply
    79,821.91x = 119,751.63 × 27,231.58
  4. Step 4: Simplify right side
    79,821.91x = 3,261,026,092.48
  5. Step 5: Solve for x
    x = 3,261,026,092.48/79,821.91
  6. Step 6: Final answer
    x = 40,853.77

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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.