Home / 75,129.22-103,679.55-41,137.14

Finding the Fourth Proportional to 75,129.22, 103,679.55 and 41,137.14

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Solution

The fourth proportional to 75,129.22, 103,679.55 and 41,137.14 is: 56,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.22 : 103,679.55 = 41,137.14 : x
  2. Step 2: Convert to fraction form
    75,129.22/103,679.55 = 41,137.14/x
  3. Step 3: Cross multiply
    75,129.22x = 103,679.55 × 41,137.14
  4. Step 4: Simplify right side
    75,129.22x = 4,265,080,163.49
  5. Step 5: Solve for x
    x = 4,265,080,163.49/75,129.22
  6. Step 6: Final answer
    x = 56,769.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.