Home / 84,839.40-117,065.32-49,022.48

Finding the Fourth Proportional to 84,839.40, 117,065.32 and 49,022.48

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Solution

The fourth proportional to 84,839.40, 117,065.32 and 49,022.48 is: 67,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,839.40 : 117,065.32 = 49,022.48 : x
  2. Step 2: Convert to fraction form
    84,839.40/117,065.32 = 49,022.48/x
  3. Step 3: Cross multiply
    84,839.40x = 117,065.32 × 49,022.48
  4. Step 4: Simplify right side
    84,839.40x = 5,738,832,478.50
  5. Step 5: Solve for x
    x = 5,738,832,478.50/84,839.40
  6. Step 6: Final answer
    x = 67,643.48

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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.