Finding the Fourth Proportional to 53.14, 73.24 and 50.78
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Solution
The fourth proportional to 53.14, 73.24 and 50.78 is: 69.99
Step by Step Solution
- Step 1: Write the proportion equation
53.14 : 73.24 = 50.78 : x - Step 2: Convert to fraction form
53.14/73.24 = 50.78/x - Step 3: Cross multiply
53.14x = 73.24 × 50.78 - Step 4: Simplify right side
53.14x = 3,719.13 - Step 5: Solve for x
x = 3,719.13/53.14 - Step 6: Final answer
x = 69.99
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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.