Home / 80,326.75-120,489.19-32,931.25

Finding the Fourth Proportional to 80,326.75, 120,489.19 and 32,931.25

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Solution

The fourth proportional to 80,326.75, 120,489.19 and 32,931.25 is: 49,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,326.75 : 120,489.19 = 32,931.25 : x
  2. Step 2: Convert to fraction form
    80,326.75/120,489.19 = 32,931.25/x
  3. Step 3: Cross multiply
    80,326.75x = 120,489.19 × 32,931.25
  4. Step 4: Simplify right side
    80,326.75x = 3,967,859,638.19
  5. Step 5: Solve for x
    x = 3,967,859,638.19/80,326.75
  6. Step 6: Final answer
    x = 49,396.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.