Home / 80,121.78-110,564.72-43,822.64

Finding the Fourth Proportional to 80,121.78, 110,564.72 and 43,822.64

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Solution

The fourth proportional to 80,121.78, 110,564.72 and 43,822.64 is: 60,473.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,121.78 : 110,564.72 = 43,822.64 : x
  2. Step 2: Convert to fraction form
    80,121.78/110,564.72 = 43,822.64/x
  3. Step 3: Cross multiply
    80,121.78x = 110,564.72 × 43,822.64
  4. Step 4: Simplify right side
    80,121.78x = 4,845,237,425.74
  5. Step 5: Solve for x
    x = 4,845,237,425.74/80,121.78
  6. Step 6: Final answer
    x = 60,473.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.