Finding the Fourth Proportional to 58.45, 87.70 and 25.96
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Solution
The fourth proportional to 58.45, 87.70 and 25.96 is: 38.95
Step by Step Solution
- Step 1: Write the proportion equation
58.45 : 87.70 = 25.96 : x - Step 2: Convert to fraction form
58.45/87.70 = 25.96/x - Step 3: Cross multiply
58.45x = 87.70 × 25.96 - Step 4: Simplify right side
58.45x = 2,276.41 - Step 5: Solve for x
x = 2,276.41/58.45 - Step 6: Final answer
x = 38.95
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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.