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Finding the Fourth Proportional to 63,144.47, 94,650.06 and 21,013.22

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Solution

The fourth proportional to 63,144.47, 94,650.06 and 21,013.22 is: 31,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,144.47 : 94,650.06 = 21,013.22 : x
  2. Step 2: Convert to fraction form
    63,144.47/94,650.06 = 21,013.22/x
  3. Step 3: Cross multiply
    63,144.47x = 94,650.06 × 21,013.22
  4. Step 4: Simplify right side
    63,144.47x = 1,988,902,533.79
  5. Step 5: Solve for x
    x = 1,988,902,533.79/63,144.47
  6. Step 6: Final answer
    x = 31,497.65

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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.