Finding the Fourth Proportional to 85,342.18, 117,753.36 and 49,511.44
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Solution
The fourth proportional to 85,342.18, 117,753.36 and 49,511.44 is: 68,314.85
Step by Step Solution
- Step 1: Write the proportion equation
85,342.18 : 117,753.36 = 49,511.44 : x - Step 2: Convert to fraction form
85,342.18/117,753.36 = 49,511.44/x - Step 3: Cross multiply
85,342.18x = 117,753.36 × 49,511.44 - Step 4: Simplify right side
85,342.18x = 5,830,138,418.44 - Step 5: Solve for x
x = 5,830,138,418.44/85,342.18 - Step 6: Final answer
x = 68,314.85
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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.