Home / 80,358.30-120,182.67-48,680.82

Finding the Fourth Proportional to 80,358.30, 120,182.67 and 48,680.82

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Solution

The fourth proportional to 80,358.30, 120,182.67 and 48,680.82 is: 72,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,358.30 : 120,182.67 = 48,680.82 : x
  2. Step 2: Convert to fraction form
    80,358.30/120,182.67 = 48,680.82/x
  3. Step 3: Cross multiply
    80,358.30x = 120,182.67 × 48,680.82
  4. Step 4: Simplify right side
    80,358.30x = 5,850,590,925.39
  5. Step 5: Solve for x
    x = 5,850,590,925.39/80,358.30
  6. Step 6: Final answer
    x = 72,806.31

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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.