Finding the Fourth Proportional to 87,165.24, 120,264.12 and 53,179.26
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Solution
The fourth proportional to 87,165.24, 120,264.12 and 53,179.26 is: 73,372.79
Step by Step Solution
- Step 1: Write the proportion equation
87,165.24 : 120,264.12 = 53,179.26 : x - Step 2: Convert to fraction form
87,165.24/120,264.12 = 53,179.26/x - Step 3: Cross multiply
87,165.24x = 120,264.12 × 53,179.26 - Step 4: Simplify right side
87,165.24x = 6,395,556,906.15 - Step 5: Solve for x
x = 6,395,556,906.15/87,165.24 - Step 6: Final answer
x = 73,372.79
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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.