Home / 45,105.22-67,710.20-26,398.68

Finding the Fourth Proportional to 45,105.22, 67,710.20 and 26,398.68

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Solution

The fourth proportional to 45,105.22, 67,710.20 and 26,398.68 is: 39,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.22 : 67,710.20 = 26,398.68 : x
  2. Step 2: Convert to fraction form
    45,105.22/67,710.20 = 26,398.68/x
  3. Step 3: Cross multiply
    45,105.22x = 67,710.20 × 26,398.68
  4. Step 4: Simplify right side
    45,105.22x = 1,787,459,902.54
  5. Step 5: Solve for x
    x = 1,787,459,902.54/45,105.22
  6. Step 6: Final answer
    x = 39,628.67

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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.