Finding the Fourth Proportional to 62.14, 85.71 and 58.09
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Solution
The fourth proportional to 62.14, 85.71 and 58.09 is: 80.12
Step by Step Solution
- Step 1: Write the proportion equation
62.14 : 85.71 = 58.09 : x - Step 2: Convert to fraction form
62.14/85.71 = 58.09/x - Step 3: Cross multiply
62.14x = 85.71 × 58.09 - Step 4: Simplify right side
62.14x = 4,978.47 - Step 5: Solve for x
x = 4,978.47/62.14 - Step 6: Final answer
x = 80.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.