Home / 89,675.47-123,747.30-49,381.36

Finding the Fourth Proportional to 89,675.47, 123,747.30 and 49,381.36

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Solution

The fourth proportional to 89,675.47, 123,747.30 and 49,381.36 is: 68,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,675.47 : 123,747.30 = 49,381.36 : x
  2. Step 2: Convert to fraction form
    89,675.47/123,747.30 = 49,381.36/x
  3. Step 3: Cross multiply
    89,675.47x = 123,747.30 × 49,381.36
  4. Step 4: Simplify right side
    89,675.47x = 6,110,809,970.33
  5. Step 5: Solve for x
    x = 6,110,809,970.33/89,675.47
  6. Step 6: Final answer
    x = 68,143.61

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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.