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Finding the Fourth Proportional to 73,589.33, 110,385 and 20,998.80

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Solution

The fourth proportional to 73,589.33, 110,385 and 20,998.80 is: 31,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,589.33 : 110,385 = 20,998.80 : x
  2. Step 2: Convert to fraction form
    73,589.33/110,385 = 20,998.80/x
  3. Step 3: Cross multiply
    73,589.33x = 110,385 × 20,998.80
  4. Step 4: Simplify right side
    73,589.33x = 2,317,952,538
  5. Step 5: Solve for x
    x = 2,317,952,538/73,589.33
  6. Step 6: Final answer
    x = 31,498.49

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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.