Finding the Fourth Proportional to 58.40, 87.26 and 51.08
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Solution
The fourth proportional to 58.40, 87.26 and 51.08 is: 76.32
Step by Step Solution
- Step 1: Write the proportion equation
58.40 : 87.26 = 51.08 : x - Step 2: Convert to fraction form
58.40/87.26 = 51.08/x - Step 3: Cross multiply
58.40x = 87.26 × 51.08 - Step 4: Simplify right side
58.40x = 4,457.24 - Step 5: Solve for x
x = 4,457.24/58.40 - Step 6: Final answer
x = 76.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.