Home / 83,703.74-115,493.19-49,723.69

Finding the Fourth Proportional to 83,703.74, 115,493.19 and 49,723.69

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Solution

The fourth proportional to 83,703.74, 115,493.19 and 49,723.69 is: 68,608.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,703.74 : 115,493.19 = 49,723.69 : x
  2. Step 2: Convert to fraction form
    83,703.74/115,493.19 = 49,723.69/x
  3. Step 3: Cross multiply
    83,703.74x = 115,493.19 × 49,723.69
  4. Step 4: Simplify right side
    83,703.74x = 5,742,747,576.67
  5. Step 5: Solve for x
    x = 5,742,747,576.67/83,703.74
  6. Step 6: Final answer
    x = 68,608.02

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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.