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Finding the Fourth Proportional to 63,285, 87,334.82 and 40,967.88

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Solution

The fourth proportional to 63,285, 87,334.82 and 40,967.88 is: 56,536.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,285 : 87,334.82 = 40,967.88 : x
  2. Step 2: Convert to fraction form
    63,285/87,334.82 = 40,967.88/x
  3. Step 3: Cross multiply
    63,285x = 87,334.82 × 40,967.88
  4. Step 4: Simplify right side
    63,285x = 3,577,922,425.58
  5. Step 5: Solve for x
    x = 3,577,922,425.58/63,285
  6. Step 6: Final answer
    x = 56,536.66

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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.