Finding the Fourth Proportional to 87.51, 130.95 and 63.08
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Solution
The fourth proportional to 87.51, 130.95 and 63.08 is: 94.39
Step by Step Solution
- Step 1: Write the proportion equation
87.51 : 130.95 = 63.08 : x - Step 2: Convert to fraction form
87.51/130.95 = 63.08/x - Step 3: Cross multiply
87.51x = 130.95 × 63.08 - Step 4: Simplify right side
87.51x = 8,259.67 - Step 5: Solve for x
x = 8,259.67/87.51 - Step 6: Final answer
x = 94.39
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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.