Home / 75,711.90-104,487.07-41,720.37

Finding the Fourth Proportional to 75,711.90, 104,487.07 and 41,720.37

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Solution

The fourth proportional to 75,711.90, 104,487.07 and 41,720.37 is: 57,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,711.90 : 104,487.07 = 41,720.37 : x
  2. Step 2: Convert to fraction form
    75,711.90/104,487.07 = 41,720.37/x
  3. Step 3: Cross multiply
    75,711.90x = 104,487.07 × 41,720.37
  4. Step 4: Simplify right side
    75,711.90x = 4,359,238,998.63
  5. Step 5: Solve for x
    x = 4,359,238,998.63/75,711.90
  6. Step 6: Final answer
    x = 57,576.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.