Finding the Fourth Proportional to 40.61, 60.60 and 39.53
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Solution
The fourth proportional to 40.61, 60.60 and 39.53 is: 58.99
Step by Step Solution
- Step 1: Write the proportion equation
40.61 : 60.60 = 39.53 : x - Step 2: Convert to fraction form
40.61/60.60 = 39.53/x - Step 3: Cross multiply
40.61x = 60.60 × 39.53 - Step 4: Simplify right side
40.61x = 2,395.22 - Step 5: Solve for x
x = 2,395.22/40.61 - Step 6: Final answer
x = 58.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.