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Finding the Fourth Proportional to 48,860.80, 73,289.83 and 20,766.76

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Solution

The fourth proportional to 48,860.80, 73,289.83 and 20,766.76 is: 31,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,860.80 : 73,289.83 = 20,766.76 : x
  2. Step 2: Convert to fraction form
    48,860.80/73,289.83 = 20,766.76/x
  3. Step 3: Cross multiply
    48,860.80x = 73,289.83 × 20,766.76
  4. Step 4: Simplify right side
    48,860.80x = 1,521,992,074.91
  5. Step 5: Solve for x
    x = 1,521,992,074.91/48,860.80
  6. Step 6: Final answer
    x = 31,149.55

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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.