Finding the Fourth Proportional to 60.48, 82.96 and 56.99
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Solution
The fourth proportional to 60.48, 82.96 and 56.99 is: 78.17
Step by Step Solution
- Step 1: Write the proportion equation
60.48 : 82.96 = 56.99 : x - Step 2: Convert to fraction form
60.48/82.96 = 56.99/x - Step 3: Cross multiply
60.48x = 82.96 × 56.99 - Step 4: Simplify right side
60.48x = 4,727.96 - Step 5: Solve for x
x = 4,727.96/60.48 - Step 6: Final answer
x = 78.17
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.