Home / 71,540.82-98,728.07-39,712.68

Finding the Fourth Proportional to 71,540.82, 98,728.07 and 39,712.68

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Solution

The fourth proportional to 71,540.82, 98,728.07 and 39,712.68 is: 54,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,540.82 : 98,728.07 = 39,712.68 : x
  2. Step 2: Convert to fraction form
    71,540.82/98,728.07 = 39,712.68/x
  3. Step 3: Cross multiply
    71,540.82x = 98,728.07 × 39,712.68
  4. Step 4: Simplify right side
    71,540.82x = 3,920,756,052.36
  5. Step 5: Solve for x
    x = 3,920,756,052.36/71,540.82
  6. Step 6: Final answer
    x = 54,804.46

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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.