Finding the Fourth Proportional to 78,845.08, 118,302.84 and 42,832.48
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Solution
The fourth proportional to 78,845.08, 118,302.84 and 42,832.48 is: 64,267.85
Step by Step Solution
- Step 1: Write the proportion equation
78,845.08 : 118,302.84 = 42,832.48 : x - Step 2: Convert to fraction form
78,845.08/118,302.84 = 42,832.48/x - Step 3: Cross multiply
78,845.08x = 118,302.84 × 42,832.48 - Step 4: Simplify right side
78,845.08x = 5,067,204,028.24 - Step 5: Solve for x
x = 5,067,204,028.24/78,845.08 - Step 6: Final answer
x = 64,267.85
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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.