Finding the Fourth Proportional to 59.49, 89.24 and 20.99
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Solution
The fourth proportional to 59.49, 89.24 and 20.99 is: 31.49
Step by Step Solution
- Step 1: Write the proportion equation
59.49 : 89.24 = 20.99 : x - Step 2: Convert to fraction form
59.49/89.24 = 20.99/x - Step 3: Cross multiply
59.49x = 89.24 × 20.99 - Step 4: Simplify right side
59.49x = 1,873.27 - Step 5: Solve for x
x = 1,873.27/59.49 - Step 6: Final answer
x = 31.49
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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.