Home / 80,929.62-111,663.90-49,097.70

Finding the Fourth Proportional to 80,929.62, 111,663.90 and 49,097.70

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Solution

The fourth proportional to 80,929.62, 111,663.90 and 49,097.70 is: 67,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929.62 : 111,663.90 = 49,097.70 : x
  2. Step 2: Convert to fraction form
    80,929.62/111,663.90 = 49,097.70/x
  3. Step 3: Cross multiply
    80,929.62x = 111,663.90 × 49,097.70
  4. Step 4: Simplify right side
    80,929.62x = 5,482,440,663.03
  5. Step 5: Solve for x
    x = 5,482,440,663.03/80,929.62
  6. Step 6: Final answer
    x = 67,743.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.