Home / 54,184.48-81,288-19,149.28

Finding the Fourth Proportional to 54,184.48, 81,288 and 19,149.28

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Solution

The fourth proportional to 54,184.48, 81,288 and 19,149.28 is: 28,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,184.48 : 81,288 = 19,149.28 : x
  2. Step 2: Convert to fraction form
    54,184.48/81,288 = 19,149.28/x
  3. Step 3: Cross multiply
    54,184.48x = 81,288 × 19,149.28
  4. Step 4: Simplify right side
    54,184.48x = 1,556,606,672.64
  5. Step 5: Solve for x
    x = 1,556,606,672.64/54,184.48
  6. Step 6: Final answer
    x = 28,727.91

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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.