Home / 85,007.05-117,302.47-49,199.27

Finding the Fourth Proportional to 85,007.05, 117,302.47 and 49,199.27

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Solution

The fourth proportional to 85,007.05, 117,302.47 and 49,199.27 is: 67,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,007.05 : 117,302.47 = 49,199.27 : x
  2. Step 2: Convert to fraction form
    85,007.05/117,302.47 = 49,199.27/x
  3. Step 3: Cross multiply
    85,007.05x = 117,302.47 × 49,199.27
  4. Step 4: Simplify right side
    85,007.05x = 5,771,195,183.69
  5. Step 5: Solve for x
    x = 5,771,195,183.69/85,007.05
  6. Step 6: Final answer
    x = 67,890.78

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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.