Home / 43,771.40-65,643.72-28,777.88

Finding the Fourth Proportional to 43,771.40, 65,643.72 and 28,777.88

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Solution

The fourth proportional to 43,771.40, 65,643.72 and 28,777.88 is: 43,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,771.40 : 65,643.72 = 28,777.88 : x
  2. Step 2: Convert to fraction form
    43,771.40/65,643.72 = 28,777.88/x
  3. Step 3: Cross multiply
    43,771.40x = 65,643.72 × 28,777.88
  4. Step 4: Simplify right side
    43,771.40x = 1,889,087,096.91
  5. Step 5: Solve for x
    x = 1,889,087,096.91/43,771.40
  6. Step 6: Final answer
    x = 43,158.02

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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.