Home / 74,912.88-103,344.24-50,722.68

Finding the Fourth Proportional to 74,912.88, 103,344.24 and 50,722.68

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Solution

The fourth proportional to 74,912.88, 103,344.24 and 50,722.68 is: 69,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,912.88 : 103,344.24 = 50,722.68 : x
  2. Step 2: Convert to fraction form
    74,912.88/103,344.24 = 50,722.68/x
  3. Step 3: Cross multiply
    74,912.88x = 103,344.24 × 50,722.68
  4. Step 4: Simplify right side
    74,912.88x = 5,241,896,815.36
  5. Step 5: Solve for x
    x = 5,241,896,815.36/74,912.88
  6. Step 6: Final answer
    x = 69,973.24

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1.5x scale

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.