Home / 54,197.24-81,321.78-19,153.40

Finding the Fourth Proportional to 54,197.24, 81,321.78 and 19,153.40

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Solution

The fourth proportional to 54,197.24, 81,321.78 and 19,153.40 is: 28,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,197.24 : 81,321.78 = 19,153.40 : x
  2. Step 2: Convert to fraction form
    54,197.24/81,321.78 = 19,153.40/x
  3. Step 3: Cross multiply
    54,197.24x = 81,321.78 × 19,153.40
  4. Step 4: Simplify right side
    54,197.24x = 1,557,588,581.05
  5. Step 5: Solve for x
    x = 1,557,588,581.05/54,197.24
  6. Step 6: Final answer
    x = 28,739.26

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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.