Home / 45,680.67-68,520.26-13,659.81

Finding the Fourth Proportional to 45,680.67, 68,520.26 and 13,659.81

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Solution

The fourth proportional to 45,680.67, 68,520.26 and 13,659.81 is: 20,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,680.67 : 68,520.26 = 13,659.81 : x
  2. Step 2: Convert to fraction form
    45,680.67/68,520.26 = 13,659.81/x
  3. Step 3: Cross multiply
    45,680.67x = 68,520.26 × 13,659.81
  4. Step 4: Simplify right side
    45,680.67x = 935,973,664.45
  5. Step 5: Solve for x
    x = 935,973,664.45/45,680.67
  6. Step 6: Final answer
    x = 20,489.49

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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.