Home / 67,028.91-100,543.28-17,109.02

Finding the Fourth Proportional to 67,028.91, 100,543.28 and 17,109.02

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Solution

The fourth proportional to 67,028.91, 100,543.28 and 17,109.02 is: 25,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,028.91 : 100,543.28 = 17,109.02 : x
  2. Step 2: Convert to fraction form
    67,028.91/100,543.28 = 17,109.02/x
  3. Step 3: Cross multiply
    67,028.91x = 100,543.28 × 17,109.02
  4. Step 4: Simplify right side
    67,028.91x = 1,720,196,400.12
  5. Step 5: Solve for x
    x = 1,720,196,400.12/67,028.91
  6. Step 6: Final answer
    x = 25,663.50

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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.