Home / 54,065.40-81,109.30-18,529.41

Finding the Fourth Proportional to 54,065.40, 81,109.30 and 18,529.41

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Solution

The fourth proportional to 54,065.40, 81,109.30 and 18,529.41 is: 27,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,065.40 : 81,109.30 = 18,529.41 : x
  2. Step 2: Convert to fraction form
    54,065.40/81,109.30 = 18,529.41/x
  3. Step 3: Cross multiply
    54,065.40x = 81,109.30 × 18,529.41
  4. Step 4: Simplify right side
    54,065.40x = 1,502,907,474.51
  5. Step 5: Solve for x
    x = 1,502,907,474.51/54,065.40
  6. Step 6: Final answer
    x = 27,797.95

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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.