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Finding the Fourth Proportional to 63,141.83, 94,728.34 and 18,768.39

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Solution

The fourth proportional to 63,141.83, 94,728.34 and 18,768.39 is: 28,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,141.83 : 94,728.34 = 18,768.39 : x
  2. Step 2: Convert to fraction form
    63,141.83/94,728.34 = 18,768.39/x
  3. Step 3: Cross multiply
    63,141.83x = 94,728.34 × 18,768.39
  4. Step 4: Simplify right side
    63,141.83x = 1,777,898,524.68
  5. Step 5: Solve for x
    x = 1,777,898,524.68/63,141.83
  6. Step 6: Final answer
    x = 28,157.22

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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.