Finding the Fourth Proportional to 42.56, 58.74 and 25.98
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Solution
The fourth proportional to 42.56, 58.74 and 25.98 is: 35.86
Step by Step Solution
- Step 1: Write the proportion equation
42.56 : 58.74 = 25.98 : x - Step 2: Convert to fraction form
42.56/58.74 = 25.98/x - Step 3: Cross multiply
42.56x = 58.74 × 25.98 - Step 4: Simplify right side
42.56x = 1,526.07 - Step 5: Solve for x
x = 1,526.07/42.56 - Step 6: Final answer
x = 35.86
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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.