Home / 77,270.40-115,819.20-32,889.60

Finding the Fourth Proportional to 77,270.40, 115,819.20 and 32,889.60

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Solution

The fourth proportional to 77,270.40, 115,819.20 and 32,889.60 is: 49,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,270.40 : 115,819.20 = 32,889.60 : x
  2. Step 2: Convert to fraction form
    77,270.40/115,819.20 = 32,889.60/x
  3. Step 3: Cross multiply
    77,270.40x = 115,819.20 × 32,889.60
  4. Step 4: Simplify right side
    77,270.40x = 3,809,247,160.32
  5. Step 5: Solve for x
    x = 3,809,247,160.32/77,270.40
  6. Step 6: Final answer
    x = 49,297.62

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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.