Home / 75,861.81-113,825.52-29,103.75

Finding the Fourth Proportional to 75,861.81, 113,825.52 and 29,103.75

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Solution

The fourth proportional to 75,861.81, 113,825.52 and 29,103.75 is: 43,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,861.81 : 113,825.52 = 29,103.75 : x
  2. Step 2: Convert to fraction form
    75,861.81/113,825.52 = 29,103.75/x
  3. Step 3: Cross multiply
    75,861.81x = 113,825.52 × 29,103.75
  4. Step 4: Simplify right side
    75,861.81x = 3,312,749,477.70
  5. Step 5: Solve for x
    x = 3,312,749,477.70/75,861.81
  6. Step 6: Final answer
    x = 43,668.21

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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.