Finding the Fourth Proportional to 87,475.99, 130,531.45 and 78,051.19
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Solution
The fourth proportional to 87,475.99, 130,531.45 and 78,051.19 is: 116,467.79
Step by Step Solution
- Step 1: Write the proportion equation
87,475.99 : 130,531.45 = 78,051.19 : x - Step 2: Convert to fraction form
87,475.99/130,531.45 = 78,051.19/x - Step 3: Cross multiply
87,475.99x = 130,531.45 × 78,051.19 - Step 4: Simplify right side
87,475.99x = 10,188,135,004.93 - Step 5: Solve for x
x = 10,188,135,004.93/87,475.99 - Step 6: Final answer
x = 116,467.79
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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.