Home / 81,576.42-122,359.65-48,506.95

Finding the Fourth Proportional to 81,576.42, 122,359.65 and 48,506.95

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Solution

The fourth proportional to 81,576.42, 122,359.65 and 48,506.95 is: 72,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.42 : 122,359.65 = 48,506.95 : x
  2. Step 2: Convert to fraction form
    81,576.42/122,359.65 = 48,506.95/x
  3. Step 3: Cross multiply
    81,576.42x = 122,359.65 × 48,506.95
  4. Step 4: Simplify right side
    81,576.42x = 5,935,293,395.62
  5. Step 5: Solve for x
    x = 5,935,293,395.62/81,576.42
  6. Step 6: Final answer
    x = 72,757.47

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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.