Home / 80,587.85-120,905.91-32,531.70

Finding the Fourth Proportional to 80,587.85, 120,905.91 and 32,531.70

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Solution

The fourth proportional to 80,587.85, 120,905.91 and 32,531.70 is: 48,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,587.85 : 120,905.91 = 32,531.70 : x
  2. Step 2: Convert to fraction form
    80,587.85/120,905.91 = 32,531.70/x
  3. Step 3: Cross multiply
    80,587.85x = 120,905.91 × 32,531.70
  4. Step 4: Simplify right side
    80,587.85x = 3,933,274,792.35
  5. Step 5: Solve for x
    x = 3,933,274,792.35/80,587.85
  6. Step 6: Final answer
    x = 48,807.30

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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.