Home / 68,478.37-102,576.07-40,311.63

Finding the Fourth Proportional to 68,478.37, 102,576.07 and 40,311.63

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Solution

The fourth proportional to 68,478.37, 102,576.07 and 40,311.63 is: 60,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,478.37 : 102,576.07 = 40,311.63 : x
  2. Step 2: Convert to fraction form
    68,478.37/102,576.07 = 40,311.63/x
  3. Step 3: Cross multiply
    68,478.37x = 102,576.07 × 40,311.63
  4. Step 4: Simplify right side
    68,478.37x = 4,135,008,631.08
  5. Step 5: Solve for x
    x = 4,135,008,631.08/68,478.37
  6. Step 6: Final answer
    x = 60,384.16

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1.5x scale

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.