Home / 81,576.69-122,360.09-48,507.19

Finding the Fourth Proportional to 81,576.69, 122,360.09 and 48,507.19

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Solution

The fourth proportional to 81,576.69, 122,360.09 and 48,507.19 is: 72,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.69 : 122,360.09 = 48,507.19 : x
  2. Step 2: Convert to fraction form
    81,576.69/122,360.09 = 48,507.19/x
  3. Step 3: Cross multiply
    81,576.69x = 122,360.09 × 48,507.19
  4. Step 4: Simplify right side
    81,576.69x = 5,935,343,585.61
  5. Step 5: Solve for x
    x = 5,935,343,585.61/81,576.69
  6. Step 6: Final answer
    x = 72,757.84

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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.