Home / 69,215.96-103,753.02-52,540.70

Finding the Fourth Proportional to 69,215.96, 103,753.02 and 52,540.70

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Solution

The fourth proportional to 69,215.96, 103,753.02 and 52,540.70 is: 78,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,215.96 : 103,753.02 = 52,540.70 : x
  2. Step 2: Convert to fraction form
    69,215.96/103,753.02 = 52,540.70/x
  3. Step 3: Cross multiply
    69,215.96x = 103,753.02 × 52,540.70
  4. Step 4: Simplify right side
    69,215.96x = 5,451,256,297.91
  5. Step 5: Solve for x
    x = 5,451,256,297.91/69,215.96
  6. Step 6: Final answer
    x = 78,757.22

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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.