Finding the Fourth Proportional to 70.42, 97.15 and 41.31
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Solution
The fourth proportional to 70.42, 97.15 and 41.31 is: 56.99
Step by Step Solution
- Step 1: Write the proportion equation
70.42 : 97.15 = 41.31 : x - Step 2: Convert to fraction form
70.42/97.15 = 41.31/x - Step 3: Cross multiply
70.42x = 97.15 × 41.31 - Step 4: Simplify right side
70.42x = 4,013.27 - Step 5: Solve for x
x = 4,013.27/70.42 - Step 6: Final answer
x = 56.99
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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.