Finding the Fourth Proportional to 52.18, 72.06 and 40.54
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Solution
The fourth proportional to 52.18, 72.06 and 40.54 is: 55.99
Step by Step Solution
- Step 1: Write the proportion equation
52.18 : 72.06 = 40.54 : x - Step 2: Convert to fraction form
52.18/72.06 = 40.54/x - Step 3: Cross multiply
52.18x = 72.06 × 40.54 - Step 4: Simplify right side
52.18x = 2,921.31 - Step 5: Solve for x
x = 2,921.31/52.18 - Step 6: Final answer
x = 55.99
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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.