Home / 81,732.24-112,787.64-49,954.32

Finding the Fourth Proportional to 81,732.24, 112,787.64 and 49,954.32

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Solution

The fourth proportional to 81,732.24, 112,787.64 and 49,954.32 is: 68,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,732.24 : 112,787.64 = 49,954.32 : x
  2. Step 2: Convert to fraction form
    81,732.24/112,787.64 = 49,954.32/x
  3. Step 3: Cross multiply
    81,732.24x = 112,787.64 × 49,954.32
  4. Step 4: Simplify right side
    81,732.24x = 5,634,229,860.60
  5. Step 5: Solve for x
    x = 5,634,229,860.60/81,732.24
  6. Step 6: Final answer
    x = 68,935.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.