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Finding the Fourth Proportional to 68,018.32, 101,941.04 and 38,452.72

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Solution

The fourth proportional to 68,018.32, 101,941.04 and 38,452.72 is: 57,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,018.32 : 101,941.04 = 38,452.72 : x
  2. Step 2: Convert to fraction form
    68,018.32/101,941.04 = 38,452.72/x
  3. Step 3: Cross multiply
    68,018.32x = 101,941.04 × 38,452.72
  4. Step 4: Simplify right side
    68,018.32x = 3,919,910,267.63
  5. Step 5: Solve for x
    x = 3,919,910,267.63/68,018.32
  6. Step 6: Final answer
    x = 57,630.21

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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.