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Finding the Fourth Proportional to 63,048, 87,006.60 and 34,753.20

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Solution

The fourth proportional to 63,048, 87,006.60 and 34,753.20 is: 47,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,048 : 87,006.60 = 34,753.20 : x
  2. Step 2: Convert to fraction form
    63,048/87,006.60 = 34,753.20/x
  3. Step 3: Cross multiply
    63,048x = 87,006.60 × 34,753.20
  4. Step 4: Simplify right side
    63,048x = 3,023,757,771.12
  5. Step 5: Solve for x
    x = 3,023,757,771.12/63,048
  6. Step 6: Final answer
    x = 47,959.61

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Why These Related Problems?

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