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Finding the Fourth Proportional to 67,872, 101,773.22 and 35,868.28

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Solution

The fourth proportional to 67,872, 101,773.22 and 35,868.28 is: 53,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872 : 101,773.22 = 35,868.28 : x
  2. Step 2: Convert to fraction form
    67,872/101,773.22 = 35,868.28/x
  3. Step 3: Cross multiply
    67,872x = 101,773.22 × 35,868.28
  4. Step 4: Simplify right side
    67,872x = 3,650,430,351.46
  5. Step 5: Solve for x
    x = 3,650,430,351.46/67,872
  6. Step 6: Final answer
    x = 53,784.04

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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.