Finding the Fourth Proportional to 78,586.24, 117,879.36 and 64,706.08
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Solution
The fourth proportional to 78,586.24, 117,879.36 and 64,706.08 is: 97,059.12
Step by Step Solution
- Step 1: Write the proportion equation
78,586.24 : 117,879.36 = 64,706.08 : x - Step 2: Convert to fraction form
78,586.24/117,879.36 = 64,706.08/x - Step 3: Cross multiply
78,586.24x = 117,879.36 × 64,706.08 - Step 4: Simplify right side
78,586.24x = 7,627,511,298.51 - Step 5: Solve for x
x = 7,627,511,298.51/78,586.24 - Step 6: Final answer
x = 97,059.12
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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.