Home / 54,386.25-81,579.38-19,327.29

Finding the Fourth Proportional to 54,386.25, 81,579.38 and 19,327.29

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Solution

The fourth proportional to 54,386.25, 81,579.38 and 19,327.29 is: 28,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,386.25 : 81,579.38 = 19,327.29 : x
  2. Step 2: Convert to fraction form
    54,386.25/81,579.38 = 19,327.29/x
  3. Step 3: Cross multiply
    54,386.25x = 81,579.38 × 19,327.29
  4. Step 4: Simplify right side
    54,386.25x = 1,576,708,238.64
  5. Step 5: Solve for x
    x = 1,576,708,238.64/54,386.25
  6. Step 6: Final answer
    x = 28,990.94

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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.