Home / 76,986.60-115,422.30-41,965.80

Finding the Fourth Proportional to 76,986.60, 115,422.30 and 41,965.80

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Solution

The fourth proportional to 76,986.60, 115,422.30 and 41,965.80 is: 62,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,986.60 : 115,422.30 = 41,965.80 : x
  2. Step 2: Convert to fraction form
    76,986.60/115,422.30 = 41,965.80/x
  3. Step 3: Cross multiply
    76,986.60x = 115,422.30 × 41,965.80
  4. Step 4: Simplify right side
    76,986.60x = 4,843,789,157.34
  5. Step 5: Solve for x
    x = 4,843,789,157.34/76,986.60
  6. Step 6: Final answer
    x = 62,917.30

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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.