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Finding the Fourth Proportional to 67,744.76, 101,616.22 and 20,997.63

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Solution

The fourth proportional to 67,744.76, 101,616.22 and 20,997.63 is: 31,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,744.76 : 101,616.22 = 20,997.63 : x
  2. Step 2: Convert to fraction form
    67,744.76/101,616.22 = 20,997.63/x
  3. Step 3: Cross multiply
    67,744.76x = 101,616.22 × 20,997.63
  4. Step 4: Simplify right side
    67,744.76x = 2,133,699,815.81
  5. Step 5: Solve for x
    x = 2,133,699,815.81/67,744.76
  6. Step 6: Final answer
    x = 31,496.16

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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.