Home / 76,892.28-115,338.24-30,112.44

Finding the Fourth Proportional to 76,892.28, 115,338.24 and 30,112.44

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Solution

The fourth proportional to 76,892.28, 115,338.24 and 30,112.44 is: 45,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,892.28 : 115,338.24 = 30,112.44 : x
  2. Step 2: Convert to fraction form
    76,892.28/115,338.24 = 30,112.44/x
  3. Step 3: Cross multiply
    76,892.28x = 115,338.24 × 30,112.44
  4. Step 4: Simplify right side
    76,892.28x = 3,473,115,831.71
  5. Step 5: Solve for x
    x = 3,473,115,831.71/76,892.28
  6. Step 6: Final answer
    x = 45,168.59

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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.