Home / 66,106.26-99,161.22-19,359.12

Finding the Fourth Proportional to 66,106.26, 99,161.22 and 19,359.12

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Solution

The fourth proportional to 66,106.26, 99,161.22 and 19,359.12 is: 29,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.26 : 99,161.22 = 19,359.12 : x
  2. Step 2: Convert to fraction form
    66,106.26/99,161.22 = 19,359.12/x
  3. Step 3: Cross multiply
    66,106.26x = 99,161.22 × 19,359.12
  4. Step 4: Simplify right side
    66,106.26x = 1,919,673,957.33
  5. Step 5: Solve for x
    x = 1,919,673,957.33/66,106.26
  6. Step 6: Final answer
    x = 29,039.22

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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.