Home / 43,814.50-65,768.55-18,866.91

Finding the Fourth Proportional to 43,814.50, 65,768.55 and 18,866.91

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Solution

The fourth proportional to 43,814.50, 65,768.55 and 18,866.91 is: 28,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,814.50 : 65,768.55 = 18,866.91 : x
  2. Step 2: Convert to fraction form
    43,814.50/65,768.55 = 18,866.91/x
  3. Step 3: Cross multiply
    43,814.50x = 65,768.55 × 18,866.91
  4. Step 4: Simplify right side
    43,814.50x = 1,240,849,313.68
  5. Step 5: Solve for x
    x = 1,240,849,313.68/43,814.50
  6. Step 6: Final answer
    x = 28,320.52

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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.