Finding the Fourth Proportional to 62.36, 93.69 and 47.09
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Solution
The fourth proportional to 62.36, 93.69 and 47.09 is: 70.75
Step by Step Solution
- Step 1: Write the proportion equation
62.36 : 93.69 = 47.09 : x - Step 2: Convert to fraction form
62.36/93.69 = 47.09/x - Step 3: Cross multiply
62.36x = 93.69 × 47.09 - Step 4: Simplify right side
62.36x = 4,411.86 - Step 5: Solve for x
x = 4,411.86/62.36 - Step 6: Final answer
x = 70.75
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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.