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Finding the Fourth Proportional to 67,395.29, 101,092.94 and 20,642.09

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Solution

The fourth proportional to 67,395.29, 101,092.94 and 20,642.09 is: 30,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,395.29 : 101,092.94 = 20,642.09 : x
  2. Step 2: Convert to fraction form
    67,395.29/101,092.94 = 20,642.09/x
  3. Step 3: Cross multiply
    67,395.29x = 101,092.94 × 20,642.09
  4. Step 4: Simplify right side
    67,395.29x = 2,086,769,715.37
  5. Step 5: Solve for x
    x = 2,086,769,715.37/67,395.29
  6. Step 6: Final answer
    x = 30,963.14

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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.