Finding the Fourth Proportional to 96,858.62, 145,215.80 and 40,715.18
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Solution
The fourth proportional to 96,858.62, 145,215.80 and 40,715.18 is: 61,042.45
Step by Step Solution
- Step 1: Write the proportion equation
96,858.62 : 145,215.80 = 40,715.18 : x - Step 2: Convert to fraction form
96,858.62/145,215.80 = 40,715.18/x - Step 3: Cross multiply
96,858.62x = 145,215.80 × 40,715.18 - Step 4: Simplify right side
96,858.62x = 5,912,487,435.84 - Step 5: Solve for x
x = 5,912,487,435.84/96,858.62 - Step 6: Final answer
x = 61,042.45
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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.