Home / 67,039.11-100,558.53-17,119.22

Finding the Fourth Proportional to 67,039.11, 100,558.53 and 17,119.22

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Solution

The fourth proportional to 67,039.11, 100,558.53 and 17,119.22 is: 25,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,039.11 : 100,558.53 = 17,119.22 : x
  2. Step 2: Convert to fraction form
    67,039.11/100,558.53 = 17,119.22/x
  3. Step 3: Cross multiply
    67,039.11x = 100,558.53 × 17,119.22
  4. Step 4: Simplify right side
    67,039.11x = 1,721,483,095.15
  5. Step 5: Solve for x
    x = 1,721,483,095.15/67,039.11
  6. Step 6: Final answer
    x = 25,678.79

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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.