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Finding the Fourth Proportional to 69,156.81, 95,435.44 and 38,945.08

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Solution

The fourth proportional to 69,156.81, 95,435.44 and 38,945.08 is: 53,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,156.81 : 95,435.44 = 38,945.08 : x
  2. Step 2: Convert to fraction form
    69,156.81/95,435.44 = 38,945.08/x
  3. Step 3: Cross multiply
    69,156.81x = 95,435.44 × 38,945.08
  4. Step 4: Simplify right side
    69,156.81x = 3,716,740,708.69
  5. Step 5: Solve for x
    x = 3,716,740,708.69/69,156.81
  6. Step 6: Final answer
    x = 53,743.67

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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.