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Finding the Fourth Proportional to 50,459, 69,635.58 and 28,103

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Solution

The fourth proportional to 50,459, 69,635.58 and 28,103 is: 38,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,459 : 69,635.58 = 28,103 : x
  2. Step 2: Convert to fraction form
    50,459/69,635.58 = 28,103/x
  3. Step 3: Cross multiply
    50,459x = 69,635.58 × 28,103
  4. Step 4: Simplify right side
    50,459x = 1,956,968,704.74
  5. Step 5: Solve for x
    x = 1,956,968,704.74/50,459
  6. Step 6: Final answer
    x = 38,783.34

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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.