Home / 75,712.24-113,581.68-31,314.10

Finding the Fourth Proportional to 75,712.24, 113,581.68 and 31,314.10

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Solution

The fourth proportional to 75,712.24, 113,581.68 and 31,314.10 is: 46,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.24 : 113,581.68 = 31,314.10 : x
  2. Step 2: Convert to fraction form
    75,712.24/113,581.68 = 31,314.10/x
  3. Step 3: Cross multiply
    75,712.24x = 113,581.68 × 31,314.10
  4. Step 4: Simplify right side
    75,712.24x = 3,556,708,085.69
  5. Step 5: Solve for x
    x = 3,556,708,085.69/75,712.24
  6. Step 6: Final answer
    x = 46,976.66

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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.