Home / 74,856.20-103,318.92-49,367.16

Finding the Fourth Proportional to 74,856.20, 103,318.92 and 49,367.16

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Solution

The fourth proportional to 74,856.20, 103,318.92 and 49,367.16 is: 68,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,856.20 : 103,318.92 = 49,367.16 : x
  2. Step 2: Convert to fraction form
    74,856.20/103,318.92 = 49,367.16/x
  3. Step 3: Cross multiply
    74,856.20x = 103,318.92 × 49,367.16
  4. Step 4: Simplify right side
    74,856.20x = 5,100,561,407.83
  5. Step 5: Solve for x
    x = 5,100,561,407.83/74,856.20
  6. Step 6: Final answer
    x = 68,138.13

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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.