Home / 71,474.25-98,634.93-39,643.23

Finding the Fourth Proportional to 71,474.25, 98,634.93 and 39,643.23

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Solution

The fourth proportional to 71,474.25, 98,634.93 and 39,643.23 is: 54,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,474.25 : 98,634.93 = 39,643.23 : x
  2. Step 2: Convert to fraction form
    71,474.25/98,634.93 = 39,643.23/x
  3. Step 3: Cross multiply
    71,474.25x = 98,634.93 × 39,643.23
  4. Step 4: Simplify right side
    71,474.25x = 3,910,207,067.36
  5. Step 5: Solve for x
    x = 3,910,207,067.36/71,474.25
  6. Step 6: Final answer
    x = 54,707.91

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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.