Home / 80,607.03-120,911.22-30,687.54

Finding the Fourth Proportional to 80,607.03, 120,911.22 and 30,687.54

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Solution

The fourth proportional to 80,607.03, 120,911.22 and 30,687.54 is: 46,031.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.03 : 120,911.22 = 30,687.54 : x
  2. Step 2: Convert to fraction form
    80,607.03/120,911.22 = 30,687.54/x
  3. Step 3: Cross multiply
    80,607.03x = 120,911.22 × 30,687.54
  4. Step 4: Simplify right side
    80,607.03x = 3,710,467,900.20
  5. Step 5: Solve for x
    x = 3,710,467,900.20/80,607.03
  6. Step 6: Final answer
    x = 46,031.57

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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.