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Finding the Fourth Proportional to 65,863.94, 90,906.09 and 60,550.34

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Solution

The fourth proportional to 65,863.94, 90,906.09 and 60,550.34 is: 83,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.94 : 90,906.09 = 60,550.34 : x
  2. Step 2: Convert to fraction form
    65,863.94/90,906.09 = 60,550.34/x
  3. Step 3: Cross multiply
    65,863.94x = 90,906.09 × 60,550.34
  4. Step 4: Simplify right side
    65,863.94x = 5,504,394,657.57
  5. Step 5: Solve for x
    x = 5,504,394,657.57/65,863.94
  6. Step 6: Final answer
    x = 83,572.20

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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.