Finding the Fourth Proportional to 58.57, 87.86 and 17.99
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Solution
The fourth proportional to 58.57, 87.86 and 17.99 is: 26.99
Step by Step Solution
- Step 1: Write the proportion equation
58.57 : 87.86 = 17.99 : x - Step 2: Convert to fraction form
58.57/87.86 = 17.99/x - Step 3: Cross multiply
58.57x = 87.86 × 17.99 - Step 4: Simplify right side
58.57x = 1,580.80 - Step 5: Solve for x
x = 1,580.80/58.57 - Step 6: Final answer
x = 26.99
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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.