Home / 65,414.07-90,271.26-36,729.54

Finding the Fourth Proportional to 65,414.07, 90,271.26 and 36,729.54

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Solution

The fourth proportional to 65,414.07, 90,271.26 and 36,729.54 is: 50,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,414.07 : 90,271.26 = 36,729.54 : x
  2. Step 2: Convert to fraction form
    65,414.07/90,271.26 = 36,729.54/x
  3. Step 3: Cross multiply
    65,414.07x = 90,271.26 × 36,729.54
  4. Step 4: Simplify right side
    65,414.07x = 3,315,621,855.02
  5. Step 5: Solve for x
    x = 3,315,621,855.02/65,414.07
  6. Step 6: Final answer
    x = 50,686.68

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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.