Home / 43,685.53-65,532.24-18,719.91

Finding the Fourth Proportional to 43,685.53, 65,532.24 and 18,719.91

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Solution

The fourth proportional to 43,685.53, 65,532.24 and 18,719.91 is: 28,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,685.53 : 65,532.24 = 18,719.91 : x
  2. Step 2: Convert to fraction form
    43,685.53/65,532.24 = 18,719.91/x
  3. Step 3: Cross multiply
    43,685.53x = 65,532.24 × 18,719.91
  4. Step 4: Simplify right side
    43,685.53x = 1,226,757,634.90
  5. Step 5: Solve for x
    x = 1,226,757,634.90/43,685.53
  6. Step 6: Final answer
    x = 28,081.56

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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.