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Finding the Fourth Proportional to 63,163.84, 94,755.12 and 21,030.16

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Solution

The fourth proportional to 63,163.84, 94,755.12 and 21,030.16 is: 31,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,163.84 : 94,755.12 = 21,030.16 : x
  2. Step 2: Convert to fraction form
    63,163.84/94,755.12 = 21,030.16/x
  3. Step 3: Cross multiply
    63,163.84x = 94,755.12 × 21,030.16
  4. Step 4: Simplify right side
    63,163.84x = 1,992,715,334.42
  5. Step 5: Solve for x
    x = 1,992,715,334.42/63,163.84
  6. Step 6: Final answer
    x = 31,548.36

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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.