Home / 89,219.76-133,787.27-51,791.33

Finding the Fourth Proportional to 89,219.76, 133,787.27 and 51,791.33

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Solution

The fourth proportional to 89,219.76, 133,787.27 and 51,791.33 is: 77,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.76 : 133,787.27 = 51,791.33 : x
  2. Step 2: Convert to fraction form
    89,219.76/133,787.27 = 51,791.33/x
  3. Step 3: Cross multiply
    89,219.76x = 133,787.27 × 51,791.33
  4. Step 4: Simplify right side
    89,219.76x = 6,929,019,722.48
  5. Step 5: Solve for x
    x = 6,929,019,722.48/89,219.76
  6. Step 6: Final answer
    x = 77,662.39

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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.