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Finding the Fourth Proportional to 63,002.88, 94,512.78 and 20,869.11

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Solution

The fourth proportional to 63,002.88, 94,512.78 and 20,869.11 is: 31,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,002.88 : 94,512.78 = 20,869.11 : x
  2. Step 2: Convert to fraction form
    63,002.88/94,512.78 = 20,869.11/x
  3. Step 3: Cross multiply
    63,002.88x = 94,512.78 × 20,869.11
  4. Step 4: Simplify right side
    63,002.88x = 1,972,397,602.23
  5. Step 5: Solve for x
    x = 1,972,397,602.23/63,002.88
  6. Step 6: Final answer
    x = 31,306.47

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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.