Home / 45,409.26-68,116.44-13,820.34

Finding the Fourth Proportional to 45,409.26, 68,116.44 and 13,820.34

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Solution

The fourth proportional to 45,409.26, 68,116.44 and 13,820.34 is: 20,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,409.26 : 68,116.44 = 13,820.34 : x
  2. Step 2: Convert to fraction form
    45,409.26/68,116.44 = 13,820.34/x
  3. Step 3: Cross multiply
    45,409.26x = 68,116.44 × 13,820.34
  4. Step 4: Simplify right side
    45,409.26x = 941,392,360.39
  5. Step 5: Solve for x
    x = 941,392,360.39/45,409.26
  6. Step 6: Final answer
    x = 20,731.29

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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.