Home / 71,481.06-98,648.55-39,653.46

Finding the Fourth Proportional to 71,481.06, 98,648.55 and 39,653.46

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Solution

The fourth proportional to 71,481.06, 98,648.55 and 39,653.46 is: 54,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,481.06 : 98,648.55 = 39,653.46 : x
  2. Step 2: Convert to fraction form
    71,481.06/98,648.55 = 39,653.46/x
  3. Step 3: Cross multiply
    71,481.06x = 98,648.55 × 39,653.46
  4. Step 4: Simplify right side
    71,481.06x = 3,911,756,331.48
  5. Step 5: Solve for x
    x = 3,911,756,331.48/71,481.06
  6. Step 6: Final answer
    x = 54,724.37

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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.