Home / 83,629.82-115,407.22-45,389.44

Finding the Fourth Proportional to 83,629.82, 115,407.22 and 45,389.44

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Solution

The fourth proportional to 83,629.82, 115,407.22 and 45,389.44 is: 62,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,629.82 : 115,407.22 = 45,389.44 : x
  2. Step 2: Convert to fraction form
    83,629.82/115,407.22 = 45,389.44/x
  3. Step 3: Cross multiply
    83,629.82x = 115,407.22 × 45,389.44
  4. Step 4: Simplify right side
    83,629.82x = 5,238,269,087.76
  5. Step 5: Solve for x
    x = 5,238,269,087.76/83,629.82
  6. Step 6: Final answer
    x = 62,636.38

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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.