Home / 77,684.48-116,453.76-28,424.96

Finding the Fourth Proportional to 77,684.48, 116,453.76 and 28,424.96

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Solution

The fourth proportional to 77,684.48, 116,453.76 and 28,424.96 is: 42,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,684.48 : 116,453.76 = 28,424.96 : x
  2. Step 2: Convert to fraction form
    77,684.48/116,453.76 = 28,424.96/x
  3. Step 3: Cross multiply
    77,684.48x = 116,453.76 × 28,424.96
  4. Step 4: Simplify right side
    77,684.48x = 3,310,193,469.85
  5. Step 5: Solve for x
    x = 3,310,193,469.85/77,684.48
  6. Step 6: Final answer
    x = 42,610.74

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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.