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Finding the Fourth Proportional to 63,158.43, 94,717.92 and 21,028.68

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Solution

The fourth proportional to 63,158.43, 94,717.92 and 21,028.68 is: 31,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,158.43 : 94,717.92 = 21,028.68 : x
  2. Step 2: Convert to fraction form
    63,158.43/94,717.92 = 21,028.68/x
  3. Step 3: Cross multiply
    63,158.43x = 94,717.92 × 21,028.68
  4. Step 4: Simplify right side
    63,158.43x = 1,991,792,829.95
  5. Step 5: Solve for x
    x = 1,991,792,829.95/63,158.43
  6. Step 6: Final answer
    x = 31,536.45

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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.