Finding the Fourth Proportional to 73.41, 101.35 and 57.07
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Solution
The fourth proportional to 73.41, 101.35 and 57.07 is: 78.79
Step by Step Solution
- Step 1: Write the proportion equation
73.41 : 101.35 = 57.07 : x - Step 2: Convert to fraction form
73.41/101.35 = 57.07/x - Step 3: Cross multiply
73.41x = 101.35 × 57.07 - Step 4: Simplify right side
73.41x = 5,784.04 - Step 5: Solve for x
x = 5,784.04/73.41 - Step 6: Final answer
x = 78.79
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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.