Finding the Fourth Proportional to 58.19, 87.28 and 49.99
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Solution
The fourth proportional to 58.19, 87.28 and 49.99 is: 74.98
Step by Step Solution
- Step 1: Write the proportion equation
58.19 : 87.28 = 49.99 : x - Step 2: Convert to fraction form
58.19/87.28 = 49.99/x - Step 3: Cross multiply
58.19x = 87.28 × 49.99 - Step 4: Simplify right side
58.19x = 4,363.13 - Step 5: Solve for x
x = 4,363.13/58.19 - Step 6: Final answer
x = 74.98
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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.