Finding the Fourth Proportional to 87,476.99, 130,532.94 and 78,052.19
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Solution
The fourth proportional to 87,476.99, 130,532.94 and 78,052.19 is: 116,469.28
Step by Step Solution
- Step 1: Write the proportion equation
87,476.99 : 130,532.94 = 78,052.19 : x - Step 2: Convert to fraction form
87,476.99/130,532.94 = 78,052.19/x - Step 3: Cross multiply
87,476.99x = 130,532.94 × 78,052.19 - Step 4: Simplify right side
87,476.99x = 10,188,381,834.14 - Step 5: Solve for x
x = 10,188,381,834.14/87,476.99 - Step 6: Final answer
x = 116,469.28
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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.