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Finding the Fourth Proportional to 63,406.45, 95,106.41 and 21,286.86

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Solution

The fourth proportional to 63,406.45, 95,106.41 and 21,286.86 is: 31,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,406.45 : 95,106.41 = 21,286.86 : x
  2. Step 2: Convert to fraction form
    63,406.45/95,106.41 = 21,286.86/x
  3. Step 3: Cross multiply
    63,406.45x = 95,106.41 × 21,286.86
  4. Step 4: Simplify right side
    63,406.45x = 2,024,516,834.77
  5. Step 5: Solve for x
    x = 2,024,516,834.77/63,406.45
  6. Step 6: Final answer
    x = 31,929.19

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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.