Home / 89,309.07-123,239.75-49,016.43

Finding the Fourth Proportional to 89,309.07, 123,239.75 and 49,016.43

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Solution

The fourth proportional to 89,309.07, 123,239.75 and 49,016.43 is: 67,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,309.07 : 123,239.75 = 49,016.43 : x
  2. Step 2: Convert to fraction form
    89,309.07/123,239.75 = 49,016.43/x
  3. Step 3: Cross multiply
    89,309.07x = 123,239.75 × 49,016.43
  4. Step 4: Simplify right side
    89,309.07x = 6,040,772,334.01
  5. Step 5: Solve for x
    x = 6,040,772,334.01/89,309.07
  6. Step 6: Final answer
    x = 67,638.96

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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.