Home / 77,971.41-116,393.15-68,512.94

Finding the Fourth Proportional to 77,971.41, 116,393.15 and 68,512.94

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Solution

The fourth proportional to 77,971.41, 116,393.15 and 68,512.94 is: 102,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,971.41 : 116,393.15 = 68,512.94 : x
  2. Step 2: Convert to fraction form
    77,971.41/116,393.15 = 68,512.94/x
  3. Step 3: Cross multiply
    77,971.41x = 116,393.15 × 68,512.94
  4. Step 4: Simplify right side
    77,971.41x = 7,974,436,928.15
  5. Step 5: Solve for x
    x = 7,974,436,928.15/77,971.41
  6. Step 6: Final answer
    x = 102,273.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.