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Finding the Fourth Proportional to 50,885.44, 70,215.60 and 30,738.96

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Solution

The fourth proportional to 50,885.44, 70,215.60 and 30,738.96 is: 42,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,885.44 : 70,215.60 = 30,738.96 : x
  2. Step 2: Convert to fraction form
    50,885.44/70,215.60 = 30,738.96/x
  3. Step 3: Cross multiply
    50,885.44x = 70,215.60 × 30,738.96
  4. Step 4: Simplify right side
    50,885.44x = 2,158,354,519.78
  5. Step 5: Solve for x
    x = 2,158,354,519.78/50,885.44
  6. Step 6: Final answer
    x = 42,415.95

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1.5x scale

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.