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Finding the Fourth Proportional to 63,229.88, 94,772.82 and 21,100.07

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Solution

The fourth proportional to 63,229.88, 94,772.82 and 21,100.07 is: 31,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,229.88 : 94,772.82 = 21,100.07 : x
  2. Step 2: Convert to fraction form
    63,229.88/94,772.82 = 21,100.07/x
  3. Step 3: Cross multiply
    63,229.88x = 94,772.82 × 21,100.07
  4. Step 4: Simplify right side
    63,229.88x = 1,999,713,136.10
  5. Step 5: Solve for x
    x = 1,999,713,136.10/63,229.88
  6. Step 6: Final answer
    x = 31,626.08

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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.