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Finding the Fourth Proportional to 67,645.58, 101,469.05 and 30,207.56

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Solution

The fourth proportional to 67,645.58, 101,469.05 and 30,207.56 is: 45,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,645.58 : 101,469.05 = 30,207.56 : x
  2. Step 2: Convert to fraction form
    67,645.58/101,469.05 = 30,207.56/x
  3. Step 3: Cross multiply
    67,645.58x = 101,469.05 × 30,207.56
  4. Step 4: Simplify right side
    67,645.58x = 3,065,132,326.21
  5. Step 5: Solve for x
    x = 3,065,132,326.21/67,645.58
  6. Step 6: Final answer
    x = 45,311.64

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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.