Home / 71,540.56-98,725.26-39,708.64

Finding the Fourth Proportional to 71,540.56, 98,725.26 and 39,708.64

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Solution

The fourth proportional to 71,540.56, 98,725.26 and 39,708.64 is: 54,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,540.56 : 98,725.26 = 39,708.64 : x
  2. Step 2: Convert to fraction form
    71,540.56/98,725.26 = 39,708.64/x
  3. Step 3: Cross multiply
    71,540.56x = 98,725.26 × 39,708.64
  4. Step 4: Simplify right side
    71,540.56x = 3,920,245,808.25
  5. Step 5: Solve for x
    x = 3,920,245,808.25/71,540.56
  6. Step 6: Final answer
    x = 54,797.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.