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Finding the Fourth Proportional to 45,469.48, 68,208.22 and 13,886.67

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Solution

The fourth proportional to 45,469.48, 68,208.22 and 13,886.67 is: 20,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,469.48 : 68,208.22 = 13,886.67 : x
  2. Step 2: Convert to fraction form
    45,469.48/68,208.22 = 13,886.67/x
  3. Step 3: Cross multiply
    45,469.48x = 68,208.22 × 13,886.67
  4. Step 4: Simplify right side
    45,469.48x = 947,185,042.43
  5. Step 5: Solve for x
    x = 947,185,042.43/45,469.48
  6. Step 6: Final answer
    x = 20,831.23

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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.