Home / 74,912.50-112,387.23-22,321.78

Finding the Fourth Proportional to 74,912.50, 112,387.23 and 22,321.78

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Solution

The fourth proportional to 74,912.50, 112,387.23 and 22,321.78 is: 33,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,912.50 : 112,387.23 = 22,321.78 : x
  2. Step 2: Convert to fraction form
    74,912.50/112,387.23 = 22,321.78/x
  3. Step 3: Cross multiply
    74,912.50x = 112,387.23 × 22,321.78
  4. Step 4: Simplify right side
    74,912.50x = 2,508,683,022.87
  5. Step 5: Solve for x
    x = 2,508,683,022.87/74,912.50
  6. Step 6: Final answer
    x = 33,488.18

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1.5x scale

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.