Home / 80,143.06-120,225.53-33,385

Finding the Fourth Proportional to 80,143.06, 120,225.53 and 33,385

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Solution

The fourth proportional to 80,143.06, 120,225.53 and 33,385 is: 50,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,143.06 : 120,225.53 = 33,385 : x
  2. Step 2: Convert to fraction form
    80,143.06/120,225.53 = 33,385/x
  3. Step 3: Cross multiply
    80,143.06x = 120,225.53 × 33,385
  4. Step 4: Simplify right side
    80,143.06x = 4,013,729,319.05
  5. Step 5: Solve for x
    x = 4,013,729,319.05/80,143.06
  6. Step 6: Final answer
    x = 50,082.06

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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.