Home / 54,239.70-81,360.27-19,154.82

Finding the Fourth Proportional to 54,239.70, 81,360.27 and 19,154.82

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Solution

The fourth proportional to 54,239.70, 81,360.27 and 19,154.82 is: 28,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,239.70 : 81,360.27 = 19,154.82 : x
  2. Step 2: Convert to fraction form
    54,239.70/81,360.27 = 19,154.82/x
  3. Step 3: Cross multiply
    54,239.70x = 81,360.27 × 19,154.82
  4. Step 4: Simplify right side
    54,239.70x = 1,558,441,327.00
  5. Step 5: Solve for x
    x = 1,558,441,327.00/54,239.70
  6. Step 6: Final answer
    x = 28,732.48

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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.