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Finding the Fourth Proportional to 51,000.40, 76,500.60 and 50,654.80

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Solution

The fourth proportional to 51,000.40, 76,500.60 and 50,654.80 is: 75,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,000.40 : 76,500.60 = 50,654.80 : x
  2. Step 2: Convert to fraction form
    51,000.40/76,500.60 = 50,654.80/x
  3. Step 3: Cross multiply
    51,000.40x = 76,500.60 × 50,654.80
  4. Step 4: Simplify right side
    51,000.40x = 3,875,122,592.88
  5. Step 5: Solve for x
    x = 3,875,122,592.88/51,000.40
  6. Step 6: Final answer
    x = 75,982.20

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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.