Home / 54,391.80-81,559.44-19,326.36

Finding the Fourth Proportional to 54,391.80, 81,559.44 and 19,326.36

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Solution

The fourth proportional to 54,391.80, 81,559.44 and 19,326.36 is: 28,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,391.80 : 81,559.44 = 19,326.36 : x
  2. Step 2: Convert to fraction form
    54,391.80/81,559.44 = 19,326.36/x
  3. Step 3: Cross multiply
    54,391.80x = 81,559.44 × 19,326.36
  4. Step 4: Simplify right side
    54,391.80x = 1,576,247,098.84
  5. Step 5: Solve for x
    x = 1,576,247,098.84/54,391.80
  6. Step 6: Final answer
    x = 28,979.50

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1.5x scale

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.