Home / 80,806.00-121,215.90-24,658.73

Finding the Fourth Proportional to 80,806.00, 121,215.90 and 24,658.73

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Solution

The fourth proportional to 80,806.00, 121,215.90 and 24,658.73 is: 36,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,806.00 : 121,215.90 = 24,658.73 : x
  2. Step 2: Convert to fraction form
    80,806.00/121,215.90 = 24,658.73/x
  3. Step 3: Cross multiply
    80,806.00x = 121,215.90 × 24,658.73
  4. Step 4: Simplify right side
    80,806.00x = 2,989,030,149.81
  5. Step 5: Solve for x
    x = 2,989,030,149.81/80,806.00
  6. Step 6: Final answer
    x = 36,990.20

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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.