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Finding the Fourth Proportional to 63,149.08, 94,703.10 and 21,020.20

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Solution

The fourth proportional to 63,149.08, 94,703.10 and 21,020.20 is: 31,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,149.08 : 94,703.10 = 21,020.20 : x
  2. Step 2: Convert to fraction form
    63,149.08/94,703.10 = 21,020.20/x
  3. Step 3: Cross multiply
    63,149.08x = 94,703.10 × 21,020.20
  4. Step 4: Simplify right side
    63,149.08x = 1,990,678,102.62
  5. Step 5: Solve for x
    x = 1,990,678,102.62/63,149.08
  6. Step 6: Final answer
    x = 31,523.47

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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.