Home / 85,243.47-117,642.40-49,433.17

Finding the Fourth Proportional to 85,243.47, 117,642.40 and 49,433.17

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Solution

The fourth proportional to 85,243.47, 117,642.40 and 49,433.17 is: 68,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.47 : 117,642.40 = 49,433.17 : x
  2. Step 2: Convert to fraction form
    85,243.47/117,642.40 = 49,433.17/x
  3. Step 3: Cross multiply
    85,243.47x = 117,642.40 × 49,433.17
  4. Step 4: Simplify right side
    85,243.47x = 5,815,436,340.72
  5. Step 5: Solve for x
    x = 5,815,436,340.72/85,243.47
  6. Step 6: Final answer
    x = 68,221.49

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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.