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Finding the Fourth Proportional to 63,906.40, 95,859.60 and 40,286.80

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Solution

The fourth proportional to 63,906.40, 95,859.60 and 40,286.80 is: 60,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,906.40 : 95,859.60 = 40,286.80 : x
  2. Step 2: Convert to fraction form
    63,906.40/95,859.60 = 40,286.80/x
  3. Step 3: Cross multiply
    63,906.40x = 95,859.60 × 40,286.80
  4. Step 4: Simplify right side
    63,906.40x = 3,861,876,533.28
  5. Step 5: Solve for x
    x = 3,861,876,533.28/63,906.40
  6. Step 6: Final answer
    x = 60,430.20

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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.