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Finding the Fourth Proportional to 69,423.99, 104,119.73 and 19,508.85

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Solution

The fourth proportional to 69,423.99, 104,119.73 and 19,508.85 is: 29,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,423.99 : 104,119.73 = 19,508.85 : x
  2. Step 2: Convert to fraction form
    69,423.99/104,119.73 = 19,508.85/x
  3. Step 3: Cross multiply
    69,423.99x = 104,119.73 × 19,508.85
  4. Step 4: Simplify right side
    69,423.99x = 2,031,256,170.22
  5. Step 5: Solve for x
    x = 2,031,256,170.22/69,423.99
  6. Step 6: Final answer
    x = 29,258.71

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1.5x scale

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.