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Finding the Fourth Proportional to 69,300, 103,956.48 and 22,540.32

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Solution

The fourth proportional to 69,300, 103,956.48 and 22,540.32 is: 33,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,300 : 103,956.48 = 22,540.32 : x
  2. Step 2: Convert to fraction form
    69,300/103,956.48 = 22,540.32/x
  3. Step 3: Cross multiply
    69,300x = 103,956.48 × 22,540.32
  4. Step 4: Simplify right side
    69,300x = 2,343,212,325.27
  5. Step 5: Solve for x
    x = 2,343,212,325.27/69,300
  6. Step 6: Final answer
    x = 33,812.59

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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.