Home / 89,787.66-123,907.80-49,502.85

Finding the Fourth Proportional to 89,787.66, 123,907.80 and 49,502.85

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Solution

The fourth proportional to 89,787.66, 123,907.80 and 49,502.85 is: 68,314.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.66 : 123,907.80 = 49,502.85 : x
  2. Step 2: Convert to fraction form
    89,787.66/123,907.80 = 49,502.85/x
  3. Step 3: Cross multiply
    89,787.66x = 123,907.80 × 49,502.85
  4. Step 4: Simplify right side
    89,787.66x = 6,133,789,237.23
  5. Step 5: Solve for x
    x = 6,133,789,237.23/89,787.66
  6. Step 6: Final answer
    x = 68,314.39

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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.