Finding the Fourth Proportional to 61.74, 85.16 and 38.41
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Solution
The fourth proportional to 61.74, 85.16 and 38.41 is: 52.99
Step by Step Solution
- Step 1: Write the proportion equation
61.74 : 85.16 = 38.41 : x - Step 2: Convert to fraction form
61.74/85.16 = 38.41/x - Step 3: Cross multiply
61.74x = 85.16 × 38.41 - Step 4: Simplify right side
61.74x = 3,271.21 - Step 5: Solve for x
x = 3,271.21/61.74 - Step 6: Final answer
x = 52.99
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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.