Finding the Fourth Proportional to 70.92, 106.26 and 58.92
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Solution
The fourth proportional to 70.92, 106.26 and 58.92 is: 88.28
Step by Step Solution
- Step 1: Write the proportion equation
70.92 : 106.26 = 58.92 : x - Step 2: Convert to fraction form
70.92/106.26 = 58.92/x - Step 3: Cross multiply
70.92x = 106.26 × 58.92 - Step 4: Simplify right side
70.92x = 6,260.84 - Step 5: Solve for x
x = 6,260.84/70.92 - Step 6: Final answer
x = 88.28
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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.