Home / 82,063.50-113,219.36-49,808.28

Finding the Fourth Proportional to 82,063.50, 113,219.36 and 49,808.28

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Solution

The fourth proportional to 82,063.50, 113,219.36 and 49,808.28 is: 68,718.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,063.50 : 113,219.36 = 49,808.28 : x
  2. Step 2: Convert to fraction form
    82,063.50/113,219.36 = 49,808.28/x
  3. Step 3: Cross multiply
    82,063.50x = 113,219.36 × 49,808.28
  4. Step 4: Simplify right side
    82,063.50x = 5,639,261,335.26
  5. Step 5: Solve for x
    x = 5,639,261,335.26/82,063.50
  6. Step 6: Final answer
    x = 68,718.26

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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.