Home / 68,503.20-94,512.24-40,215.84

Finding the Fourth Proportional to 68,503.20, 94,512.24 and 40,215.84

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Solution

The fourth proportional to 68,503.20, 94,512.24 and 40,215.84 is: 55,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,503.20 : 94,512.24 = 40,215.84 : x
  2. Step 2: Convert to fraction form
    68,503.20/94,512.24 = 40,215.84/x
  3. Step 3: Cross multiply
    68,503.20x = 94,512.24 × 40,215.84
  4. Step 4: Simplify right side
    68,503.20x = 3,800,889,121.88
  5. Step 5: Solve for x
    x = 3,800,889,121.88/68,503.20
  6. Step 6: Final answer
    x = 55,484.84

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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.