Finding the Fourth Proportional to 58.62, 87.80 and 35.80
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Solution
The fourth proportional to 58.62, 87.80 and 35.80 is: 53.62
Step by Step Solution
- Step 1: Write the proportion equation
58.62 : 87.80 = 35.80 : x - Step 2: Convert to fraction form
58.62/87.80 = 35.80/x - Step 3: Cross multiply
58.62x = 87.80 × 35.80 - Step 4: Simplify right side
58.62x = 3,143.24 - Step 5: Solve for x
x = 3,143.24/58.62 - Step 6: Final answer
x = 53.62
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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.