Home / 54,660.84-81,960.99-19,112.64

Finding the Fourth Proportional to 54,660.84, 81,960.99 and 19,112.64

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Solution

The fourth proportional to 54,660.84, 81,960.99 and 19,112.64 is: 28,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660.84 : 81,960.99 = 19,112.64 : x
  2. Step 2: Convert to fraction form
    54,660.84/81,960.99 = 19,112.64/x
  3. Step 3: Cross multiply
    54,660.84x = 81,960.99 × 19,112.64
  4. Step 4: Simplify right side
    54,660.84x = 1,566,490,895.91
  5. Step 5: Solve for x
    x = 1,566,490,895.91/54,660.84
  6. Step 6: Final answer
    x = 28,658.38

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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.