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Finding the Fourth Proportional to 51,000.60, 76,355.10 and 45,751.80

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Solution

The fourth proportional to 51,000.60, 76,355.10 and 45,751.80 is: 68,496.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,000.60 : 76,355.10 = 45,751.80 : x
  2. Step 2: Convert to fraction form
    51,000.60/76,355.10 = 45,751.80/x
  3. Step 3: Cross multiply
    51,000.60x = 76,355.10 × 45,751.80
  4. Step 4: Simplify right side
    51,000.60x = 3,493,383,264.18
  5. Step 5: Solve for x
    x = 3,493,383,264.18/51,000.60
  6. Step 6: Final answer
    x = 68,496.91

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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.