Home / 73,175.15-109,749.96-20,572.13

Finding the Fourth Proportional to 73,175.15, 109,749.96 and 20,572.13

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Solution

The fourth proportional to 73,175.15, 109,749.96 and 20,572.13 is: 30,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,175.15 : 109,749.96 = 20,572.13 : x
  2. Step 2: Convert to fraction form
    73,175.15/109,749.96 = 20,572.13/x
  3. Step 3: Cross multiply
    73,175.15x = 109,749.96 × 20,572.13
  4. Step 4: Simplify right side
    73,175.15x = 2,257,789,895.87
  5. Step 5: Solve for x
    x = 2,257,789,895.87/73,175.15
  6. Step 6: Final answer
    x = 30,854.60

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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.