Home / 83,839.27-115,647.60-51,579.40

Finding the Fourth Proportional to 83,839.27, 115,647.60 and 51,579.40

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Solution

The fourth proportional to 83,839.27, 115,647.60 and 51,579.40 is: 71,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,839.27 : 115,647.60 = 51,579.40 : x
  2. Step 2: Convert to fraction form
    83,839.27/115,647.60 = 51,579.40/x
  3. Step 3: Cross multiply
    83,839.27x = 115,647.60 × 51,579.40
  4. Step 4: Simplify right side
    83,839.27x = 5,965,033,819.44
  5. Step 5: Solve for x
    x = 5,965,033,819.44/83,839.27
  6. Step 6: Final answer
    x = 71,148.45

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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.