Home / 54,639.54-81,959.27-19,603.80

Finding the Fourth Proportional to 54,639.54, 81,959.27 and 19,603.80

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Solution

The fourth proportional to 54,639.54, 81,959.27 and 19,603.80 is: 29,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,639.54 : 81,959.27 = 19,603.80 : x
  2. Step 2: Convert to fraction form
    54,639.54/81,959.27 = 19,603.80/x
  3. Step 3: Cross multiply
    54,639.54x = 81,959.27 × 19,603.80
  4. Step 4: Simplify right side
    54,639.54x = 1,606,713,039.21
  5. Step 5: Solve for x
    x = 1,606,713,039.21/54,639.54
  6. Step 6: Final answer
    x = 29,405.68

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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.