Home / 45,067.09-67,616.70-20,104.90

Finding the Fourth Proportional to 45,067.09, 67,616.70 and 20,104.90

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Solution

The fourth proportional to 45,067.09, 67,616.70 and 20,104.90 is: 30,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,067.09 : 67,616.70 = 20,104.90 : x
  2. Step 2: Convert to fraction form
    45,067.09/67,616.70 = 20,104.90/x
  3. Step 3: Cross multiply
    45,067.09x = 67,616.70 × 20,104.90
  4. Step 4: Simplify right side
    45,067.09x = 1,359,426,991.83
  5. Step 5: Solve for x
    x = 1,359,426,991.83/45,067.09
  6. Step 6: Final answer
    x = 30,164.52

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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.