Home / 89,219.77-133,787.27-51,791.32

Finding the Fourth Proportional to 89,219.77, 133,787.27 and 51,791.32

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Solution

The fourth proportional to 89,219.77, 133,787.27 and 51,791.32 is: 77,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.77 : 133,787.27 = 51,791.32 : x
  2. Step 2: Convert to fraction form
    89,219.77/133,787.27 = 51,791.32/x
  3. Step 3: Cross multiply
    89,219.77x = 133,787.27 × 51,791.32
  4. Step 4: Simplify right side
    89,219.77x = 6,929,019,107.51
  5. Step 5: Solve for x
    x = 6,929,019,107.51/89,219.77
  6. Step 6: Final answer
    x = 77,662.38

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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.