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Finding the Fourth Proportional to 63,634.82, 87,822.93 and 40,685.44

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Solution

The fourth proportional to 63,634.82, 87,822.93 and 40,685.44 is: 56,150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,634.82 : 87,822.93 = 40,685.44 : x
  2. Step 2: Convert to fraction form
    63,634.82/87,822.93 = 40,685.44/x
  3. Step 3: Cross multiply
    63,634.82x = 87,822.93 × 40,685.44
  4. Step 4: Simplify right side
    63,634.82x = 3,573,114,646.82
  5. Step 5: Solve for x
    x = 3,573,114,646.82/63,634.82
  6. Step 6: Final answer
    x = 56,150.31

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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.