Home / 54,939.96-82,409.31-13,386.96

Finding the Fourth Proportional to 54,939.96, 82,409.31 and 13,386.96

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Solution

The fourth proportional to 54,939.96, 82,409.31 and 13,386.96 is: 20,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,939.96 : 82,409.31 = 13,386.96 : x
  2. Step 2: Convert to fraction form
    54,939.96/82,409.31 = 13,386.96/x
  3. Step 3: Cross multiply
    54,939.96x = 82,409.31 × 13,386.96
  4. Step 4: Simplify right side
    54,939.96x = 1,103,210,136.60
  5. Step 5: Solve for x
    x = 1,103,210,136.60/54,939.96
  6. Step 6: Final answer
    x = 20,080.29

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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.