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Finding the Fourth Proportional to 63,304.50, 87,371.90 and 40,671.79

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Solution

The fourth proportional to 63,304.50, 87,371.90 and 40,671.79 is: 56,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,304.50 : 87,371.90 = 40,671.79 : x
  2. Step 2: Convert to fraction form
    63,304.50/87,371.90 = 40,671.79/x
  3. Step 3: Cross multiply
    63,304.50x = 87,371.90 × 40,671.79
  4. Step 4: Simplify right side
    63,304.50x = 3,553,571,299.43
  5. Step 5: Solve for x
    x = 3,553,571,299.43/63,304.50
  6. Step 6: Final answer
    x = 56,134.57

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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.