Home / 81,719.78-122,576.34-22,553.93

Finding the Fourth Proportional to 81,719.78, 122,576.34 and 22,553.93

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Solution

The fourth proportional to 81,719.78, 122,576.34 and 22,553.93 is: 33,829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,719.78 : 122,576.34 = 22,553.93 : x
  2. Step 2: Convert to fraction form
    81,719.78/122,576.34 = 22,553.93/x
  3. Step 3: Cross multiply
    81,719.78x = 122,576.34 × 22,553.93
  4. Step 4: Simplify right side
    81,719.78x = 2,764,578,192.02
  5. Step 5: Solve for x
    x = 2,764,578,192.02/81,719.78
  6. Step 6: Final answer
    x = 33,829.98

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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.