Home / 54,739.56-82,109.38-13,186.60

Finding the Fourth Proportional to 54,739.56, 82,109.38 and 13,186.60

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Solution

The fourth proportional to 54,739.56, 82,109.38 and 13,186.60 is: 19,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,739.56 : 82,109.38 = 13,186.60 : x
  2. Step 2: Convert to fraction form
    54,739.56/82,109.38 = 13,186.60/x
  3. Step 3: Cross multiply
    54,739.56x = 82,109.38 × 13,186.60
  4. Step 4: Simplify right side
    54,739.56x = 1,082,743,550.31
  5. Step 5: Solve for x
    x = 1,082,743,550.31/54,739.56
  6. Step 6: Final answer
    x = 19,779.91

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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.