Finding the Fourth Proportional to 87,086.08, 120,204.30 and 56,876.10
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Solution
The fourth proportional to 87,086.08, 120,204.30 and 56,876.10 is: 78,505.67
Step by Step Solution
- Step 1: Write the proportion equation
87,086.08 : 120,204.30 = 56,876.10 : x - Step 2: Convert to fraction form
87,086.08/120,204.30 = 56,876.10/x - Step 3: Cross multiply
87,086.08x = 120,204.30 × 56,876.10 - Step 4: Simplify right side
87,086.08x = 6,836,751,186.21 - Step 5: Solve for x
x = 6,836,751,186.21/87,086.08 - Step 6: Final answer
x = 78,505.67
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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.