Home / 54,865.73-82,290.20-17,420.96

Finding the Fourth Proportional to 54,865.73, 82,290.20 and 17,420.96

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Solution

The fourth proportional to 54,865.73, 82,290.20 and 17,420.96 is: 26,128.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,865.73 : 82,290.20 = 17,420.96 : x
  2. Step 2: Convert to fraction form
    54,865.73/82,290.20 = 17,420.96/x
  3. Step 3: Cross multiply
    54,865.73x = 82,290.20 × 17,420.96
  4. Step 4: Simplify right side
    54,865.73x = 1,433,573,784.04
  5. Step 5: Solve for x
    x = 1,433,573,784.04/54,865.73
  6. Step 6: Final answer
    x = 26,128.77

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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.