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Finding the Fourth Proportional to 65,170.28, 89,914.09 and 36,485.73

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Solution

The fourth proportional to 65,170.28, 89,914.09 and 36,485.73 is: 50,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,170.28 : 89,914.09 = 36,485.73 : x
  2. Step 2: Convert to fraction form
    65,170.28/89,914.09 = 36,485.73/x
  3. Step 3: Cross multiply
    65,170.28x = 89,914.09 × 36,485.73
  4. Step 4: Simplify right side
    65,170.28x = 3,280,580,578.94
  5. Step 5: Solve for x
    x = 3,280,580,578.94/65,170.28
  6. Step 6: Final answer
    x = 50,338.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.