Finding the Fourth Proportional to 63.41, 87.50 and 56.53
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Solution
The fourth proportional to 63.41, 87.50 and 56.53 is: 77.99
Step by Step Solution
- Step 1: Write the proportion equation
63.41 : 87.50 = 56.53 : x - Step 2: Convert to fraction form
63.41/87.50 = 56.53/x - Step 3: Cross multiply
63.41x = 87.50 × 56.53 - Step 4: Simplify right side
63.41x = 4,945.65 - Step 5: Solve for x
x = 4,945.65/63.41 - Step 6: Final answer
x = 77.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.