Home / 65,609.11-90,540.35-36,928.75

Finding the Fourth Proportional to 65,609.11, 90,540.35 and 36,928.75

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Solution

The fourth proportional to 65,609.11, 90,540.35 and 36,928.75 is: 50,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,609.11 : 90,540.35 = 36,928.75 : x
  2. Step 2: Convert to fraction form
    65,609.11/90,540.35 = 36,928.75/x
  3. Step 3: Cross multiply
    65,609.11x = 90,540.35 × 36,928.75
  4. Step 4: Simplify right side
    65,609.11x = 3,343,541,765.42
  5. Step 5: Solve for x
    x = 3,343,541,765.42/65,609.11
  6. Step 6: Final answer
    x = 50,961.55

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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.