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Finding the Fourth Proportional to 63,086, 87,059.94 and 40,768.88

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Solution

The fourth proportional to 63,086, 87,059.94 and 40,768.88 is: 56,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,086 : 87,059.94 = 40,768.88 : x
  2. Step 2: Convert to fraction form
    63,086/87,059.94 = 40,768.88/x
  3. Step 3: Cross multiply
    63,086x = 87,059.94 × 40,768.88
  4. Step 4: Simplify right side
    63,086x = 3,549,336,246.67
  5. Step 5: Solve for x
    x = 3,549,336,246.67/63,086
  6. Step 6: Final answer
    x = 56,261.87

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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.