Finding the Fourth Proportional to 59.62, 89.80 and 57.09
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Solution
The fourth proportional to 59.62, 89.80 and 57.09 is: 85.99
Step by Step Solution
- Step 1: Write the proportion equation
59.62 : 89.80 = 57.09 : x - Step 2: Convert to fraction form
59.62/89.80 = 57.09/x - Step 3: Cross multiply
59.62x = 89.80 × 57.09 - Step 4: Simplify right side
59.62x = 5,126.68 - Step 5: Solve for x
x = 5,126.68/59.62 - Step 6: Final answer
x = 85.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.