Finding the Fourth Proportional to 88.20, 132.35 and 47.63
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Solution
The fourth proportional to 88.20, 132.35 and 47.63 is: 71.47
Step by Step Solution
- Step 1: Write the proportion equation
88.20 : 132.35 = 47.63 : x - Step 2: Convert to fraction form
88.20/132.35 = 47.63/x - Step 3: Cross multiply
88.20x = 132.35 × 47.63 - Step 4: Simplify right side
88.20x = 6,303.92 - Step 5: Solve for x
x = 6,303.92/88.20 - Step 6: Final answer
x = 71.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.