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Finding the Fourth Proportional to 65,736.60, 98,604.90 and 45,000.60

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Solution

The fourth proportional to 65,736.60, 98,604.90 and 45,000.60 is: 67,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,736.60 : 98,604.90 = 45,000.60 : x
  2. Step 2: Convert to fraction form
    65,736.60/98,604.90 = 45,000.60/x
  3. Step 3: Cross multiply
    65,736.60x = 98,604.90 × 45,000.60
  4. Step 4: Simplify right side
    65,736.60x = 4,437,279,662.94
  5. Step 5: Solve for x
    x = 4,437,279,662.94/65,736.60
  6. Step 6: Final answer
    x = 67,500.90

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Similar ratio
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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.