Finding the Fourth Proportional to 58.15, 87.14 and 27.70
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Solution
The fourth proportional to 58.15, 87.14 and 27.70 is: 41.50
Step by Step Solution
- Step 1: Write the proportion equation
58.15 : 87.14 = 27.70 : x - Step 2: Convert to fraction form
58.15/87.14 = 27.70/x - Step 3: Cross multiply
58.15x = 87.14 × 27.70 - Step 4: Simplify right side
58.15x = 2,413.20 - Step 5: Solve for x
x = 2,413.20/58.15 - Step 6: Final answer
x = 41.50
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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.