Home / 81,093.85-111,909.68-45,283.75

Finding the Fourth Proportional to 81,093.85, 111,909.68 and 45,283.75

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Solution

The fourth proportional to 81,093.85, 111,909.68 and 45,283.75 is: 62,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093.85 : 111,909.68 = 45,283.75 : x
  2. Step 2: Convert to fraction form
    81,093.85/111,909.68 = 45,283.75/x
  3. Step 3: Cross multiply
    81,093.85x = 111,909.68 × 45,283.75
  4. Step 4: Simplify right side
    81,093.85x = 5,067,689,971.70
  5. Step 5: Solve for x
    x = 5,067,689,971.70/81,093.85
  6. Step 6: Final answer
    x = 62,491.67

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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.