Home / 82,063.74-113,219.69-49,808.53

Finding the Fourth Proportional to 82,063.74, 113,219.69 and 49,808.53

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Solution

The fourth proportional to 82,063.74, 113,219.69 and 49,808.53 is: 68,718.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,063.74 : 113,219.69 = 49,808.53 : x
  2. Step 2: Convert to fraction form
    82,063.74/113,219.69 = 49,808.53/x
  3. Step 3: Cross multiply
    82,063.74x = 113,219.69 × 49,808.53
  4. Step 4: Simplify right side
    82,063.74x = 5,639,306,325.96
  5. Step 5: Solve for x
    x = 5,639,306,325.96/82,063.74
  6. Step 6: Final answer
    x = 68,718.61

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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.