Home / 54,872.72-75,723.24-30,673.56

Finding the Fourth Proportional to 54,872.72, 75,723.24 and 30,673.56

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Solution

The fourth proportional to 54,872.72, 75,723.24 and 30,673.56 is: 42,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,872.72 : 75,723.24 = 30,673.56 : x
  2. Step 2: Convert to fraction form
    54,872.72/75,723.24 = 30,673.56/x
  3. Step 3: Cross multiply
    54,872.72x = 75,723.24 × 30,673.56
  4. Step 4: Simplify right side
    54,872.72x = 2,322,701,345.53
  5. Step 5: Solve for x
    x = 2,322,701,345.53/54,872.72
  6. Step 6: Final answer
    x = 42,328.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.