Home / 89,625.90-123,679.30-49,343.19

Finding the Fourth Proportional to 89,625.90, 123,679.30 and 49,343.19

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Solution

The fourth proportional to 89,625.90, 123,679.30 and 49,343.19 is: 68,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,625.90 : 123,679.30 = 49,343.19 : x
  2. Step 2: Convert to fraction form
    89,625.90/123,679.30 = 49,343.19/x
  3. Step 3: Cross multiply
    89,625.90x = 123,679.30 × 49,343.19
  4. Step 4: Simplify right side
    89,625.90x = 6,102,731,198.97
  5. Step 5: Solve for x
    x = 6,102,731,198.97/89,625.90
  6. Step 6: Final answer
    x = 68,091.16

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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.