Home / 83,915.09-115,805.66-45,676.03

Finding the Fourth Proportional to 83,915.09, 115,805.66 and 45,676.03

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Solution

The fourth proportional to 83,915.09, 115,805.66 and 45,676.03 is: 63,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,915.09 : 115,805.66 = 45,676.03 : x
  2. Step 2: Convert to fraction form
    83,915.09/115,805.66 = 45,676.03/x
  3. Step 3: Cross multiply
    83,915.09x = 115,805.66 × 45,676.03
  4. Step 4: Simplify right side
    83,915.09x = 5,289,542,800.33
  5. Step 5: Solve for x
    x = 5,289,542,800.33/83,915.09
  6. Step 6: Final answer
    x = 63,034.46

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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.