Home / 84,821.97-117,002.23-60,980.64

Finding the Fourth Proportional to 84,821.97, 117,002.23 and 60,980.64

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Solution

The fourth proportional to 84,821.97, 117,002.23 and 60,980.64 is: 84,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,821.97 : 117,002.23 = 60,980.64 : x
  2. Step 2: Convert to fraction form
    84,821.97/117,002.23 = 60,980.64/x
  3. Step 3: Cross multiply
    84,821.97x = 117,002.23 × 60,980.64
  4. Step 4: Simplify right side
    84,821.97x = 7,134,870,866.83
  5. Step 5: Solve for x
    x = 7,134,870,866.83/84,821.97
  6. Step 6: Final answer
    x = 84,115.84

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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.