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Finding the Fourth Proportional to 63,074, 87,042.72 and 34,780.64

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Solution

The fourth proportional to 63,074, 87,042.72 and 34,780.64 is: 47,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,074 : 87,042.72 = 34,780.64 : x
  2. Step 2: Convert to fraction form
    63,074/87,042.72 = 34,780.64/x
  3. Step 3: Cross multiply
    63,074x = 87,042.72 × 34,780.64
  4. Step 4: Simplify right side
    63,074x = 3,027,401,508.94
  5. Step 5: Solve for x
    x = 3,027,401,508.94/63,074
  6. Step 6: Final answer
    x = 47,997.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.