Home / 83,128.44-124,711.38-27,723

Finding the Fourth Proportional to 83,128.44, 124,711.38 and 27,723

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Solution

The fourth proportional to 83,128.44, 124,711.38 and 27,723 is: 41,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,128.44 : 124,711.38 = 27,723 : x
  2. Step 2: Convert to fraction form
    83,128.44/124,711.38 = 27,723/x
  3. Step 3: Cross multiply
    83,128.44x = 124,711.38 × 27,723
  4. Step 4: Simplify right side
    83,128.44x = 3,457,373,587.74
  5. Step 5: Solve for x
    x = 3,457,373,587.74/83,128.44
  6. Step 6: Final answer
    x = 41,590.74

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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.