Home / 84,815.46-117,040.77-47,087.28

Finding the Fourth Proportional to 84,815.46, 117,040.77 and 47,087.28

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Solution

The fourth proportional to 84,815.46, 117,040.77 and 47,087.28 is: 64,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,815.46 : 117,040.77 = 47,087.28 : x
  2. Step 2: Convert to fraction form
    84,815.46/117,040.77 = 47,087.28/x
  3. Step 3: Cross multiply
    84,815.46x = 117,040.77 × 47,087.28
  4. Step 4: Simplify right side
    84,815.46x = 5,511,131,508.41
  5. Step 5: Solve for x
    x = 5,511,131,508.41/84,815.46
  6. Step 6: Final answer
    x = 64,977.91

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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.