Home / 70,245.72-96,939.09-38,414.64

Finding the Fourth Proportional to 70,245.72, 96,939.09 and 38,414.64

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Solution

The fourth proportional to 70,245.72, 96,939.09 and 38,414.64 is: 53,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,245.72 : 96,939.09 = 38,414.64 : x
  2. Step 2: Convert to fraction form
    70,245.72/96,939.09 = 38,414.64/x
  3. Step 3: Cross multiply
    70,245.72x = 96,939.09 × 38,414.64
  4. Step 4: Simplify right side
    70,245.72x = 3,723,880,244.28
  5. Step 5: Solve for x
    x = 3,723,880,244.28/70,245.72
  6. Step 6: Final answer
    x = 53,012.20

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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.