Home / 75,540.99-113,325.17-31,143.03

Finding the Fourth Proportional to 75,540.99, 113,325.17 and 31,143.03

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Solution

The fourth proportional to 75,540.99, 113,325.17 and 31,143.03 is: 46,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.99 : 113,325.17 = 31,143.03 : x
  2. Step 2: Convert to fraction form
    75,540.99/113,325.17 = 31,143.03/x
  3. Step 3: Cross multiply
    75,540.99x = 113,325.17 × 31,143.03
  4. Step 4: Simplify right side
    75,540.99x = 3,529,289,013.35
  5. Step 5: Solve for x
    x = 3,529,289,013.35/75,540.99
  6. Step 6: Final answer
    x = 46,720.18

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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.