Home / 68,675.81-94,733.92-39,992.09

Finding the Fourth Proportional to 68,675.81, 94,733.92 and 39,992.09

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Solution

The fourth proportional to 68,675.81, 94,733.92 and 39,992.09 is: 55,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.81 : 94,733.92 = 39,992.09 : x
  2. Step 2: Convert to fraction form
    68,675.81/94,733.92 = 39,992.09/x
  3. Step 3: Cross multiply
    68,675.81x = 94,733.92 × 39,992.09
  4. Step 4: Simplify right side
    68,675.81x = 3,788,606,781.06
  5. Step 5: Solve for x
    x = 3,788,606,781.06/68,675.81
  6. Step 6: Final answer
    x = 55,166.54

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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.