Home / 54,815.50-82,174.02-21,559.43

Finding the Fourth Proportional to 54,815.50, 82,174.02 and 21,559.43

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Solution

The fourth proportional to 54,815.50, 82,174.02 and 21,559.43 is: 32,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815.50 : 82,174.02 = 21,559.43 : x
  2. Step 2: Convert to fraction form
    54,815.50/82,174.02 = 21,559.43/x
  3. Step 3: Cross multiply
    54,815.50x = 82,174.02 × 21,559.43
  4. Step 4: Simplify right side
    54,815.50x = 1,771,624,621.14
  5. Step 5: Solve for x
    x = 1,771,624,621.14/54,815.50
  6. Step 6: Final answer
    x = 32,319.78

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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.