Home / 80,522.92-111,226.20-61,285.82

Finding the Fourth Proportional to 80,522.92, 111,226.20 and 61,285.82

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Solution

The fourth proportional to 80,522.92, 111,226.20 and 61,285.82 is: 84,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,522.92 : 111,226.20 = 61,285.82 : x
  2. Step 2: Convert to fraction form
    80,522.92/111,226.20 = 61,285.82/x
  3. Step 3: Cross multiply
    80,522.92x = 111,226.20 × 61,285.82
  4. Step 4: Simplify right side
    80,522.92x = 6,816,588,872.48
  5. Step 5: Solve for x
    x = 6,816,588,872.48/80,522.92
  6. Step 6: Final answer
    x = 84,654.03

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1.5x scale

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.