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Finding the Fourth Proportional to 66,949.56, 92,386.92 and 38,653.56

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Solution

The fourth proportional to 66,949.56, 92,386.92 and 38,653.56 is: 53,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,949.56 : 92,386.92 = 38,653.56 : x
  2. Step 2: Convert to fraction form
    66,949.56/92,386.92 = 38,653.56/x
  3. Step 3: Cross multiply
    66,949.56x = 92,386.92 × 38,653.56
  4. Step 4: Simplify right side
    66,949.56x = 3,571,083,355.44
  5. Step 5: Solve for x
    x = 3,571,083,355.44/66,949.56
  6. Step 6: Final answer
    x = 53,339.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.