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Finding the Fourth Proportional to 63,930.70, 95,896.05 and 40,660.30

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Solution

The fourth proportional to 63,930.70, 95,896.05 and 40,660.30 is: 60,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,930.70 : 95,896.05 = 40,660.30 : x
  2. Step 2: Convert to fraction form
    63,930.70/95,896.05 = 40,660.30/x
  3. Step 3: Cross multiply
    63,930.70x = 95,896.05 × 40,660.30
  4. Step 4: Simplify right side
    63,930.70x = 3,899,162,161.82
  5. Step 5: Solve for x
    x = 3,899,162,161.82/63,930.70
  6. Step 6: Final answer
    x = 60,990.45

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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.