Home / 76,824.56-115,236.56-30,044.48

Finding the Fourth Proportional to 76,824.56, 115,236.56 and 30,044.48

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Solution

The fourth proportional to 76,824.56, 115,236.56 and 30,044.48 is: 45,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,824.56 : 115,236.56 = 30,044.48 : x
  2. Step 2: Convert to fraction form
    76,824.56/115,236.56 = 30,044.48/x
  3. Step 3: Cross multiply
    76,824.56x = 115,236.56 × 30,044.48
  4. Step 4: Simplify right side
    76,824.56x = 3,462,222,522.19
  5. Step 5: Solve for x
    x = 3,462,222,522.19/76,824.56
  6. Step 6: Final answer
    x = 45,066.61

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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.