Home / 82,821.75-124,252.20-27,417.75

Finding the Fourth Proportional to 82,821.75, 124,252.20 and 27,417.75

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Solution

The fourth proportional to 82,821.75, 124,252.20 and 27,417.75 is: 41,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,821.75 : 124,252.20 = 27,417.75 : x
  2. Step 2: Convert to fraction form
    82,821.75/124,252.20 = 27,417.75/x
  3. Step 3: Cross multiply
    82,821.75x = 124,252.20 × 27,417.75
  4. Step 4: Simplify right side
    82,821.75x = 3,406,715,756.55
  5. Step 5: Solve for x
    x = 3,406,715,756.55/82,821.75
  6. Step 6: Final answer
    x = 41,133.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.