Home / 54,872.71-82,309.10-15,429.83

Finding the Fourth Proportional to 54,872.71, 82,309.10 and 15,429.83

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Solution

The fourth proportional to 54,872.71, 82,309.10 and 15,429.83 is: 23,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,872.71 : 82,309.10 = 15,429.83 : x
  2. Step 2: Convert to fraction form
    54,872.71/82,309.10 = 15,429.83/x
  3. Step 3: Cross multiply
    54,872.71x = 82,309.10 × 15,429.83
  4. Step 4: Simplify right side
    54,872.71x = 1,270,015,018.55
  5. Step 5: Solve for x
    x = 1,270,015,018.55/54,872.71
  6. Step 6: Final answer
    x = 23,144.75

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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.