Home / 80,401.26-120,607.65-21,236.34

Finding the Fourth Proportional to 80,401.26, 120,607.65 and 21,236.34

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Solution

The fourth proportional to 80,401.26, 120,607.65 and 21,236.34 is: 31,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,401.26 : 120,607.65 = 21,236.34 : x
  2. Step 2: Convert to fraction form
    80,401.26/120,607.65 = 21,236.34/x
  3. Step 3: Cross multiply
    80,401.26x = 120,607.65 × 21,236.34
  4. Step 4: Simplify right side
    80,401.26x = 2,561,265,062.00
  5. Step 5: Solve for x
    x = 2,561,265,062.00/80,401.26
  6. Step 6: Final answer
    x = 31,856.03

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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.