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Finding the Fourth Proportional to 80,190.77, 120,046.50 and 48,504.95

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Solution

The fourth proportional to 80,190.77, 120,046.50 and 48,504.95 is: 72,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,190.77 : 120,046.50 = 48,504.95 : x
  2. Step 2: Convert to fraction form
    80,190.77/120,046.50 = 48,504.95/x
  3. Step 3: Cross multiply
    80,190.77x = 120,046.50 × 48,504.95
  4. Step 4: Simplify right side
    80,190.77x = 5,822,848,879.94
  5. Step 5: Solve for x
    x = 5,822,848,879.94/80,190.77
  6. Step 6: Final answer
    x = 72,612.46

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1.5x scale

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.