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Finding the Fourth Proportional to 63,643.88, 87,818.81 and 36,781.22

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Solution

The fourth proportional to 63,643.88, 87,818.81 and 36,781.22 is: 50,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.88 : 87,818.81 = 36,781.22 : x
  2. Step 2: Convert to fraction form
    63,643.88/87,818.81 = 36,781.22/x
  3. Step 3: Cross multiply
    63,643.88x = 87,818.81 × 36,781.22
  4. Step 4: Simplify right side
    63,643.88x = 3,230,082,623.61
  5. Step 5: Solve for x
    x = 3,230,082,623.61/63,643.88
  6. Step 6: Final answer
    x = 50,752.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.