Home / 71,071.97-98,078.63-39,240.18

Finding the Fourth Proportional to 71,071.97, 98,078.63 and 39,240.18

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Solution

The fourth proportional to 71,071.97, 98,078.63 and 39,240.18 is: 54,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.97 : 98,078.63 = 39,240.18 : x
  2. Step 2: Convert to fraction form
    71,071.97/98,078.63 = 39,240.18/x
  3. Step 3: Cross multiply
    71,071.97x = 98,078.63 × 39,240.18
  4. Step 4: Simplify right side
    71,071.97x = 3,848,622,899.15
  5. Step 5: Solve for x
    x = 3,848,622,899.15/71,071.97
  6. Step 6: Final answer
    x = 54,151.07

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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.