Home / 45,516.32-68,245.92-13,915.88

Finding the Fourth Proportional to 45,516.32, 68,245.92 and 13,915.88

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Solution

The fourth proportional to 45,516.32, 68,245.92 and 13,915.88 is: 20,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,516.32 : 68,245.92 = 13,915.88 : x
  2. Step 2: Convert to fraction form
    45,516.32/68,245.92 = 13,915.88/x
  3. Step 3: Cross multiply
    45,516.32x = 68,245.92 × 13,915.88
  4. Step 4: Simplify right side
    45,516.32x = 949,702,033.21
  5. Step 5: Solve for x
    x = 949,702,033.21/45,516.32
  6. Step 6: Final answer
    x = 20,865.09

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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.