Home / 54,821.05-82,231.60-19,308.60

Finding the Fourth Proportional to 54,821.05, 82,231.60 and 19,308.60

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Solution

The fourth proportional to 54,821.05, 82,231.60 and 19,308.60 is: 28,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,821.05 : 82,231.60 = 19,308.60 : x
  2. Step 2: Convert to fraction form
    54,821.05/82,231.60 = 19,308.60/x
  3. Step 3: Cross multiply
    54,821.05x = 82,231.60 × 19,308.60
  4. Step 4: Simplify right side
    54,821.05x = 1,587,777,071.76
  5. Step 5: Solve for x
    x = 1,587,777,071.76/54,821.05
  6. Step 6: Final answer
    x = 28,962.91

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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.