Home / 89,787.10-123,908.07-49,502.56

Finding the Fourth Proportional to 89,787.10, 123,908.07 and 49,502.56

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Solution

The fourth proportional to 89,787.10, 123,908.07 and 49,502.56 is: 68,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.10 : 123,908.07 = 49,502.56 : x
  2. Step 2: Convert to fraction form
    89,787.10/123,908.07 = 49,502.56/x
  3. Step 3: Cross multiply
    89,787.10x = 123,908.07 × 49,502.56
  4. Step 4: Simplify right side
    89,787.10x = 6,133,765,802.61
  5. Step 5: Solve for x
    x = 6,133,765,802.61/89,787.10
  6. Step 6: Final answer
    x = 68,314.56

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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.