Home / 80,821.68-111,495.33-62,793.30

Finding the Fourth Proportional to 80,821.68, 111,495.33 and 62,793.30

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Solution

The fourth proportional to 80,821.68, 111,495.33 and 62,793.30 is: 86,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,821.68 : 111,495.33 = 62,793.30 : x
  2. Step 2: Convert to fraction form
    80,821.68/111,495.33 = 62,793.30/x
  3. Step 3: Cross multiply
    80,821.68x = 111,495.33 × 62,793.30
  4. Step 4: Simplify right side
    80,821.68x = 7,001,159,705.29
  5. Step 5: Solve for x
    x = 7,001,159,705.29/80,821.68
  6. Step 6: Final answer
    x = 86,624.77

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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.