Home / 71,456.44-98,615.46-39,631.56

Finding the Fourth Proportional to 71,456.44, 98,615.46 and 39,631.56

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Solution

The fourth proportional to 71,456.44, 98,615.46 and 39,631.56 is: 54,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,456.44 : 98,615.46 = 39,631.56 : x
  2. Step 2: Convert to fraction form
    71,456.44/98,615.46 = 39,631.56/x
  3. Step 3: Cross multiply
    71,456.44x = 98,615.46 × 39,631.56
  4. Step 4: Simplify right side
    71,456.44x = 3,908,284,519.92
  5. Step 5: Solve for x
    x = 3,908,284,519.92/71,456.44
  6. Step 6: Final answer
    x = 54,694.64

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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.