Home / 67,067.04-100,602-20,319.84

Finding the Fourth Proportional to 67,067.04, 100,602 and 20,319.84

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Solution

The fourth proportional to 67,067.04, 100,602 and 20,319.84 is: 30,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,067.04 : 100,602 = 20,319.84 : x
  2. Step 2: Convert to fraction form
    67,067.04/100,602 = 20,319.84/x
  3. Step 3: Cross multiply
    67,067.04x = 100,602 × 20,319.84
  4. Step 4: Simplify right side
    67,067.04x = 2,044,216,543.68
  5. Step 5: Solve for x
    x = 2,044,216,543.68/67,067.04
  6. Step 6: Final answer
    x = 30,480.20

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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.