Home / 51,986.91-71,741.96-28,113.60

Finding the Fourth Proportional to 51,986.91, 71,741.96 and 28,113.60

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Solution

The fourth proportional to 51,986.91, 71,741.96 and 28,113.60 is: 38,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,986.91 : 71,741.96 = 28,113.60 : x
  2. Step 2: Convert to fraction form
    51,986.91/71,741.96 = 28,113.60/x
  3. Step 3: Cross multiply
    51,986.91x = 71,741.96 × 28,113.60
  4. Step 4: Simplify right side
    51,986.91x = 2,016,924,766.66
  5. Step 5: Solve for x
    x = 2,016,924,766.66/51,986.91
  6. Step 6: Final answer
    x = 38,796.78

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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.