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Finding the Fourth Proportional to 51,180.60, 76,770.90 and 50,489.40

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Solution

The fourth proportional to 51,180.60, 76,770.90 and 50,489.40 is: 75,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.60 : 76,770.90 = 50,489.40 : x
  2. Step 2: Convert to fraction form
    51,180.60/76,770.90 = 50,489.40/x
  3. Step 3: Cross multiply
    51,180.60x = 76,770.90 × 50,489.40
  4. Step 4: Simplify right side
    51,180.60x = 3,876,116,678.46
  5. Step 5: Solve for x
    x = 3,876,116,678.46/51,180.60
  6. Step 6: Final answer
    x = 75,734.10

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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.