Home / 71,806.78-99,096.83-39,975.67

Finding the Fourth Proportional to 71,806.78, 99,096.83 and 39,975.67

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Solution

The fourth proportional to 71,806.78, 99,096.83 and 39,975.67 is: 55,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.78 : 99,096.83 = 39,975.67 : x
  2. Step 2: Convert to fraction form
    71,806.78/99,096.83 = 39,975.67/x
  3. Step 3: Cross multiply
    71,806.78x = 99,096.83 × 39,975.67
  4. Step 4: Simplify right side
    71,806.78x = 3,961,462,174.13
  5. Step 5: Solve for x
    x = 3,961,462,174.13/71,806.78
  6. Step 6: Final answer
    x = 55,168.36

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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.