Home / 73,128.12-109,676.58-23,212.68

Finding the Fourth Proportional to 73,128.12, 109,676.58 and 23,212.68

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Solution

The fourth proportional to 73,128.12, 109,676.58 and 23,212.68 is: 34,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,128.12 : 109,676.58 = 23,212.68 : x
  2. Step 2: Convert to fraction form
    73,128.12/109,676.58 = 23,212.68/x
  3. Step 3: Cross multiply
    73,128.12x = 109,676.58 × 23,212.68
  4. Step 4: Simplify right side
    73,128.12x = 2,545,887,355.03
  5. Step 5: Solve for x
    x = 2,545,887,355.03/73,128.12
  6. Step 6: Final answer
    x = 34,814.07

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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.