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Finding the Fourth Proportional to 73,399.50, 110,104.74 and 20,813.22

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Solution

The fourth proportional to 73,399.50, 110,104.74 and 20,813.22 is: 31,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,399.50 : 110,104.74 = 20,813.22 : x
  2. Step 2: Convert to fraction form
    73,399.50/110,104.74 = 20,813.22/x
  3. Step 3: Cross multiply
    73,399.50x = 110,104.74 × 20,813.22
  4. Step 4: Simplify right side
    73,399.50x = 2,291,634,176.66
  5. Step 5: Solve for x
    x = 2,291,634,176.66/73,399.50
  6. Step 6: Final answer
    x = 31,221.39

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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.