Home / 54,208.18-81,265.54-20,951.58

Finding the Fourth Proportional to 54,208.18, 81,265.54 and 20,951.58

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Solution

The fourth proportional to 54,208.18, 81,265.54 and 20,951.58 is: 31,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,208.18 : 81,265.54 = 20,951.58 : x
  2. Step 2: Convert to fraction form
    54,208.18/81,265.54 = 20,951.58/x
  3. Step 3: Cross multiply
    54,208.18x = 81,265.54 × 20,951.58
  4. Step 4: Simplify right side
    54,208.18x = 1,702,641,462.55
  5. Step 5: Solve for x
    x = 1,702,641,462.55/54,208.18
  6. Step 6: Final answer
    x = 31,409.31

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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.