Finding the Fourth Proportional to 73.55, 101.49 and 40.80
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Solution
The fourth proportional to 73.55, 101.49 and 40.80 is: 56.31
Step by Step Solution
- Step 1: Write the proportion equation
73.55 : 101.49 = 40.80 : x - Step 2: Convert to fraction form
73.55/101.49 = 40.80/x - Step 3: Cross multiply
73.55x = 101.49 × 40.80 - Step 4: Simplify right side
73.55x = 4,141.08 - Step 5: Solve for x
x = 4,141.08/73.55 - Step 6: Final answer
x = 56.31
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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.