Home / 76,819.18-115,245.69-23,511.57

Finding the Fourth Proportional to 76,819.18, 115,245.69 and 23,511.57

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Solution

The fourth proportional to 76,819.18, 115,245.69 and 23,511.57 is: 35,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,819.18 : 115,245.69 = 23,511.57 : x
  2. Step 2: Convert to fraction form
    76,819.18/115,245.69 = 23,511.57/x
  3. Step 3: Cross multiply
    76,819.18x = 115,245.69 × 23,511.57
  4. Step 4: Simplify right side
    76,819.18x = 2,709,607,107.63
  5. Step 5: Solve for x
    x = 2,709,607,107.63/76,819.18
  6. Step 6: Final answer
    x = 35,272.53

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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.