Finding the Fourth Proportional to 60.21, 82.98 and 47.88
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Solution
The fourth proportional to 60.21, 82.98 and 47.88 is: 65.99
Step by Step Solution
- Step 1: Write the proportion equation
60.21 : 82.98 = 47.88 : x - Step 2: Convert to fraction form
60.21/82.98 = 47.88/x - Step 3: Cross multiply
60.21x = 82.98 × 47.88 - Step 4: Simplify right side
60.21x = 3,973.08 - Step 5: Solve for x
x = 3,973.08/60.21 - Step 6: Final answer
x = 65.99
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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.