Home / 54,935.05-82,405.79-21,201.25

Finding the Fourth Proportional to 54,935.05, 82,405.79 and 21,201.25

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Solution

The fourth proportional to 54,935.05, 82,405.79 and 21,201.25 is: 31,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,935.05 : 82,405.79 = 21,201.25 : x
  2. Step 2: Convert to fraction form
    54,935.05/82,405.79 = 21,201.25/x
  3. Step 3: Cross multiply
    54,935.05x = 82,405.79 × 21,201.25
  4. Step 4: Simplify right side
    54,935.05x = 1,747,105,343.21
  5. Step 5: Solve for x
    x = 1,747,105,343.21/54,935.05
  6. Step 6: Final answer
    x = 31,803.11

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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.