Home / 69,787.13-104,678.22-19,867.49

Finding the Fourth Proportional to 69,787.13, 104,678.22 and 19,867.49

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Solution

The fourth proportional to 69,787.13, 104,678.22 and 19,867.49 is: 29,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,787.13 : 104,678.22 = 19,867.49 : x
  2. Step 2: Convert to fraction form
    69,787.13/104,678.22 = 19,867.49/x
  3. Step 3: Cross multiply
    69,787.13x = 104,678.22 × 19,867.49
  4. Step 4: Simplify right side
    69,787.13x = 2,079,693,489.07
  5. Step 5: Solve for x
    x = 2,079,693,489.07/69,787.13
  6. Step 6: Final answer
    x = 29,800.53

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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.