Home / 71,019.82-98,004.48-39,188.30

Finding the Fourth Proportional to 71,019.82, 98,004.48 and 39,188.30

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Solution

The fourth proportional to 71,019.82, 98,004.48 and 39,188.30 is: 54,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.82 : 98,004.48 = 39,188.30 : x
  2. Step 2: Convert to fraction form
    71,019.82/98,004.48 = 39,188.30/x
  3. Step 3: Cross multiply
    71,019.82x = 98,004.48 × 39,188.30
  4. Step 4: Simplify right side
    71,019.82x = 3,840,628,963.58
  5. Step 5: Solve for x
    x = 3,840,628,963.58/71,019.82
  6. Step 6: Final answer
    x = 54,078.27

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1.5x scale

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.