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Finding the Fourth Proportional to 63,907.92, 95,849.32 and 21,790.34

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Solution

The fourth proportional to 63,907.92, 95,849.32 and 21,790.34 is: 32,681.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,907.92 : 95,849.32 = 21,790.34 : x
  2. Step 2: Convert to fraction form
    63,907.92/95,849.32 = 21,790.34/x
  3. Step 3: Cross multiply
    63,907.92x = 95,849.32 × 21,790.34
  4. Step 4: Simplify right side
    63,907.92x = 2,088,589,271.57
  5. Step 5: Solve for x
    x = 2,088,589,271.57/63,907.92
  6. Step 6: Final answer
    x = 32,681.23

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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.