Home / 65,786.20-90,764.23-40,265.97

Finding the Fourth Proportional to 65,786.20, 90,764.23 and 40,265.97

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Solution

The fourth proportional to 65,786.20, 90,764.23 and 40,265.97 is: 55,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,786.20 : 90,764.23 = 40,265.97 : x
  2. Step 2: Convert to fraction form
    65,786.20/90,764.23 = 40,265.97/x
  3. Step 3: Cross multiply
    65,786.20x = 90,764.23 × 40,265.97
  4. Step 4: Simplify right side
    65,786.20x = 3,654,709,762.25
  5. Step 5: Solve for x
    x = 3,654,709,762.25/65,786.20
  6. Step 6: Final answer
    x = 55,554.35

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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.