Finding the Fourth Proportional to 87,541.21, 131,330.26 and 28,372.26
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Solution
The fourth proportional to 87,541.21, 131,330.26 and 28,372.26 is: 42,564.37
Step by Step Solution
- Step 1: Write the proportion equation
87,541.21 : 131,330.26 = 28,372.26 : x - Step 2: Convert to fraction form
87,541.21/131,330.26 = 28,372.26/x - Step 3: Cross multiply
87,541.21x = 131,330.26 × 28,372.26 - Step 4: Simplify right side
87,541.21x = 3,726,136,282.59 - Step 5: Solve for x
x = 3,726,136,282.59/87,541.21 - Step 6: Final answer
x = 42,564.37
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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.