Home / 80,523.75-120,769.23-30,586.35

Finding the Fourth Proportional to 80,523.75, 120,769.23 and 30,586.35

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Solution

The fourth proportional to 80,523.75, 120,769.23 and 30,586.35 is: 45,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,523.75 : 120,769.23 = 30,586.35 : x
  2. Step 2: Convert to fraction form
    80,523.75/120,769.23 = 30,586.35/x
  3. Step 3: Cross multiply
    80,523.75x = 120,769.23 × 30,586.35
  4. Step 4: Simplify right side
    80,523.75x = 3,693,889,938.01
  5. Step 5: Solve for x
    x = 3,693,889,938.01/80,523.75
  6. Step 6: Final answer
    x = 45,873.30

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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.