Finding the Fourth Proportional to 58.40, 87.63 and 27.99
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Solution
The fourth proportional to 58.40, 87.63 and 27.99 is: 42.00
Step by Step Solution
- Step 1: Write the proportion equation
58.40 : 87.63 = 27.99 : x - Step 2: Convert to fraction form
58.40/87.63 = 27.99/x - Step 3: Cross multiply
58.40x = 87.63 × 27.99 - Step 4: Simplify right side
58.40x = 2,452.76 - Step 5: Solve for x
x = 2,452.76/58.40 - Step 6: Final answer
x = 42.00
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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.