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Finding the Fourth Proportional to 67,393.28, 101,111.00 and 20,008.64

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Solution

The fourth proportional to 67,393.28, 101,111.00 and 20,008.64 is: 30,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.28 : 101,111.00 = 20,008.64 : x
  2. Step 2: Convert to fraction form
    67,393.28/101,111.00 = 20,008.64/x
  3. Step 3: Cross multiply
    67,393.28x = 101,111.00 × 20,008.64
  4. Step 4: Simplify right side
    67,393.28x = 2,023,092,993.44
  5. Step 5: Solve for x
    x = 2,023,092,993.44/67,393.28
  6. Step 6: Final answer
    x = 30,019.21

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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.