Home / 80,583.96-120,915.54-36,242.04

Finding the Fourth Proportional to 80,583.96, 120,915.54 and 36,242.04

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Solution

The fourth proportional to 80,583.96, 120,915.54 and 36,242.04 is: 54,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,583.96 : 120,915.54 = 36,242.04 : x
  2. Step 2: Convert to fraction form
    80,583.96/120,915.54 = 36,242.04/x
  3. Step 3: Cross multiply
    80,583.96x = 120,915.54 × 36,242.04
  4. Step 4: Simplify right side
    80,583.96x = 4,382,225,837.30
  5. Step 5: Solve for x
    x = 4,382,225,837.30/80,583.96
  6. Step 6: Final answer
    x = 54,380.87

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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.