Home / 80,000.85-119,908.88-30,049.07

Finding the Fourth Proportional to 80,000.85, 119,908.88 and 30,049.07

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Solution

The fourth proportional to 80,000.85, 119,908.88 and 30,049.07 is: 45,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,000.85 : 119,908.88 = 30,049.07 : x
  2. Step 2: Convert to fraction form
    80,000.85/119,908.88 = 30,049.07/x
  3. Step 3: Cross multiply
    80,000.85x = 119,908.88 × 30,049.07
  4. Step 4: Simplify right side
    80,000.85x = 3,603,149,578.95
  5. Step 5: Solve for x
    x = 3,603,149,578.95/80,000.85
  6. Step 6: Final answer
    x = 45,038.89

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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.