Home / 89,568.06-123,606.90-49,284.78

Finding the Fourth Proportional to 89,568.06, 123,606.90 and 49,284.78

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Solution

The fourth proportional to 89,568.06, 123,606.90 and 49,284.78 is: 68,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,568.06 : 123,606.90 = 49,284.78 : x
  2. Step 2: Convert to fraction form
    89,568.06/123,606.90 = 49,284.78/x
  3. Step 3: Cross multiply
    89,568.06x = 123,606.90 × 49,284.78
  4. Step 4: Simplify right side
    89,568.06x = 6,091,938,872.98
  5. Step 5: Solve for x
    x = 6,091,938,872.98/89,568.06
  6. Step 6: Final answer
    x = 68,014.63

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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.