Home / 67,090.71-100,635.03-17,170.38

Finding the Fourth Proportional to 67,090.71, 100,635.03 and 17,170.38

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Solution

The fourth proportional to 67,090.71, 100,635.03 and 17,170.38 is: 25,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,090.71 : 100,635.03 = 17,170.38 : x
  2. Step 2: Convert to fraction form
    67,090.71/100,635.03 = 17,170.38/x
  3. Step 3: Cross multiply
    67,090.71x = 100,635.03 × 17,170.38
  4. Step 4: Simplify right side
    67,090.71x = 1,727,941,706.41
  5. Step 5: Solve for x
    x = 1,727,941,706.41/67,090.71
  6. Step 6: Final answer
    x = 25,755.31

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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.