Finding the Fourth Proportional to 53.68, 73.64 and 52.48
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Solution
The fourth proportional to 53.68, 73.64 and 52.48 is: 71.99
Step by Step Solution
- Step 1: Write the proportion equation
53.68 : 73.64 = 52.48 : x - Step 2: Convert to fraction form
53.68/73.64 = 52.48/x - Step 3: Cross multiply
53.68x = 73.64 × 52.48 - Step 4: Simplify right side
53.68x = 3,864.63 - Step 5: Solve for x
x = 3,864.63/53.68 - Step 6: Final answer
x = 71.99
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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.