Home / 67,090.21-100,634.28-17,169.88

Finding the Fourth Proportional to 67,090.21, 100,634.28 and 17,169.88

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Solution

The fourth proportional to 67,090.21, 100,634.28 and 17,169.88 is: 25,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,090.21 : 100,634.28 = 17,169.88 : x
  2. Step 2: Convert to fraction form
    67,090.21/100,634.28 = 17,169.88/x
  3. Step 3: Cross multiply
    67,090.21x = 100,634.28 × 17,169.88
  4. Step 4: Simplify right side
    67,090.21x = 1,727,878,511.49
  5. Step 5: Solve for x
    x = 1,727,878,511.49/67,090.21
  6. Step 6: Final answer
    x = 25,754.56

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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.