Home / 65,239.24-90,074-40,747.37

Finding the Fourth Proportional to 65,239.24, 90,074 and 40,747.37

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Solution

The fourth proportional to 65,239.24, 90,074 and 40,747.37 is: 56,258.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,239.24 : 90,074 = 40,747.37 : x
  2. Step 2: Convert to fraction form
    65,239.24/90,074 = 40,747.37/x
  3. Step 3: Cross multiply
    65,239.24x = 90,074 × 40,747.37
  4. Step 4: Simplify right side
    65,239.24x = 3,670,278,380.20
  5. Step 5: Solve for x
    x = 3,670,278,380.20/65,239.24
  6. Step 6: Final answer
    x = 56,258.76

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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.