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Finding the Fourth Proportional to 63,121.60, 94,682.40 and 31,952.80

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Solution

The fourth proportional to 63,121.60, 94,682.40 and 31,952.80 is: 47,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.60 : 94,682.40 = 31,952.80 : x
  2. Step 2: Convert to fraction form
    63,121.60/94,682.40 = 31,952.80/x
  3. Step 3: Cross multiply
    63,121.60x = 94,682.40 × 31,952.80
  4. Step 4: Simplify right side
    63,121.60x = 3,025,367,790.72
  5. Step 5: Solve for x
    x = 3,025,367,790.72/63,121.60
  6. Step 6: Final answer
    x = 47,929.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.