Finding the Fourth Proportional to 87,170.87, 120,273.62 and 53,177.15
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Solution
The fourth proportional to 87,170.87, 120,273.62 and 53,177.15 is: 73,370.94
Step by Step Solution
- Step 1: Write the proportion equation
87,170.87 : 120,273.62 = 53,177.15 : x - Step 2: Convert to fraction form
87,170.87/120,273.62 = 53,177.15/x - Step 3: Cross multiply
87,170.87x = 120,273.62 × 53,177.15 - Step 4: Simplify right side
87,170.87x = 6,395,808,331.78 - Step 5: Solve for x
x = 6,395,808,331.78/87,170.87 - Step 6: Final answer
x = 73,370.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.