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Finding the Fourth Proportional to 67,493.80, 101,239.26 and 20,745.64

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Solution

The fourth proportional to 67,493.80, 101,239.26 and 20,745.64 is: 31,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,493.80 : 101,239.26 = 20,745.64 : x
  2. Step 2: Convert to fraction form
    67,493.80/101,239.26 = 20,745.64/x
  3. Step 3: Cross multiply
    67,493.80x = 101,239.26 × 20,745.64
  4. Step 4: Simplify right side
    67,493.80x = 2,100,273,241.83
  5. Step 5: Solve for x
    x = 2,100,273,241.83/67,493.80
  6. Step 6: Final answer
    x = 31,118.02

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1.5x scale

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.