Home / 55,072.59-82,562.09-21,816.06

Finding the Fourth Proportional to 55,072.59, 82,562.09 and 21,816.06

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Solution

The fourth proportional to 55,072.59, 82,562.09 and 21,816.06 is: 32,705.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,072.59 : 82,562.09 = 21,816.06 : x
  2. Step 2: Convert to fraction form
    55,072.59/82,562.09 = 21,816.06/x
  3. Step 3: Cross multiply
    55,072.59x = 82,562.09 × 21,816.06
  4. Step 4: Simplify right side
    55,072.59x = 1,801,179,400.09
  5. Step 5: Solve for x
    x = 1,801,179,400.09/55,072.59
  6. Step 6: Final answer
    x = 32,705.55

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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.