Home / 82,031.59-122,908.87-50,375.85

Finding the Fourth Proportional to 82,031.59, 122,908.87 and 50,375.85

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Solution

The fourth proportional to 82,031.59, 122,908.87 and 50,375.85 is: 75,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,031.59 : 122,908.87 = 50,375.85 : x
  2. Step 2: Convert to fraction form
    82,031.59/122,908.87 = 50,375.85/x
  3. Step 3: Cross multiply
    82,031.59x = 122,908.87 × 50,375.85
  4. Step 4: Simplify right side
    82,031.59x = 6,191,638,798.79
  5. Step 5: Solve for x
    x = 6,191,638,798.79/82,031.59
  6. Step 6: Final answer
    x = 75,478.71

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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.