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Finding the Fourth Proportional to 85,050, 126,676.58 and 80,609.04

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Solution

The fourth proportional to 85,050, 126,676.58 and 80,609.04 is: 120,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,050 : 126,676.58 = 80,609.04 : x
  2. Step 2: Convert to fraction form
    85,050/126,676.58 = 80,609.04/x
  3. Step 3: Cross multiply
    85,050x = 126,676.58 × 80,609.04
  4. Step 4: Simplify right side
    85,050x = 10,211,277,504.28
  5. Step 5: Solve for x
    x = 10,211,277,504.28/85,050
  6. Step 6: Final answer
    x = 120,062.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.