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Finding the Fourth Proportional to 63,128.22, 94,676 and 18,744.92

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Solution

The fourth proportional to 63,128.22, 94,676 and 18,744.92 is: 28,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.22 : 94,676 = 18,744.92 : x
  2. Step 2: Convert to fraction form
    63,128.22/94,676 = 18,744.92/x
  3. Step 3: Cross multiply
    63,128.22x = 94,676 × 18,744.92
  4. Step 4: Simplify right side
    63,128.22x = 1,774,694,045.92
  5. Step 5: Solve for x
    x = 1,774,694,045.92/63,128.22
  6. Step 6: Final answer
    x = 28,112.53

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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.