Home / 65,396.12-90,243.56-36,326.37

Finding the Fourth Proportional to 65,396.12, 90,243.56 and 36,326.37

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Solution

The fourth proportional to 65,396.12, 90,243.56 and 36,326.37 is: 50,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,396.12 : 90,243.56 = 36,326.37 : x
  2. Step 2: Convert to fraction form
    65,396.12/90,243.56 = 36,326.37/x
  3. Step 3: Cross multiply
    65,396.12x = 90,243.56 × 36,326.37
  4. Step 4: Simplify right side
    65,396.12x = 3,278,220,769.05
  5. Step 5: Solve for x
    x = 3,278,220,769.05/65,396.12
  6. Step 6: Final answer
    x = 50,128.67

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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.