Home / 54,159.71-81,216.33-18,624.61

Finding the Fourth Proportional to 54,159.71, 81,216.33 and 18,624.61

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Solution

The fourth proportional to 54,159.71, 81,216.33 and 18,624.61 is: 27,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,159.71 : 81,216.33 = 18,624.61 : x
  2. Step 2: Convert to fraction form
    54,159.71/81,216.33 = 18,624.61/x
  3. Step 3: Cross multiply
    54,159.71x = 81,216.33 × 18,624.61
  4. Step 4: Simplify right side
    54,159.71x = 1,512,622,471.88
  5. Step 5: Solve for x
    x = 1,512,622,471.88/54,159.71
  6. Step 6: Final answer
    x = 27,928.92

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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.