Home / 54,584.20-81,913.90-19,045.72

Finding the Fourth Proportional to 54,584.20, 81,913.90 and 19,045.72

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Solution

The fourth proportional to 54,584.20, 81,913.90 and 19,045.72 is: 28,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,584.20 : 81,913.90 = 19,045.72 : x
  2. Step 2: Convert to fraction form
    54,584.20/81,913.90 = 19,045.72/x
  3. Step 3: Cross multiply
    54,584.20x = 81,913.90 × 19,045.72
  4. Step 4: Simplify right side
    54,584.20x = 1,560,109,203.51
  5. Step 5: Solve for x
    x = 1,560,109,203.51/54,584.20
  6. Step 6: Final answer
    x = 28,581.70

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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.