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Finding the Fourth Proportional to 67,605.44, 101,401.66 and 20,845.76

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Solution

The fourth proportional to 67,605.44, 101,401.66 and 20,845.76 is: 31,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,605.44 : 101,401.66 = 20,845.76 : x
  2. Step 2: Convert to fraction form
    67,605.44/101,401.66 = 20,845.76/x
  3. Step 3: Cross multiply
    67,605.44x = 101,401.66 × 20,845.76
  4. Step 4: Simplify right side
    67,605.44x = 2,113,794,667.96
  5. Step 5: Solve for x
    x = 2,113,794,667.96/67,605.44
  6. Step 6: Final answer
    x = 31,266.64

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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.