Finding the Fourth Proportional to 87,102.24, 130,711.68 and 30,940.08
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Solution
The fourth proportional to 87,102.24, 130,711.68 and 30,940.08 is: 46,430.84
Step by Step Solution
- Step 1: Write the proportion equation
87,102.24 : 130,711.68 = 30,940.08 : x - Step 2: Convert to fraction form
87,102.24/130,711.68 = 30,940.08/x - Step 3: Cross multiply
87,102.24x = 130,711.68 × 30,940.08 - Step 4: Simplify right side
87,102.24x = 4,044,229,836.13 - Step 5: Solve for x
x = 4,044,229,836.13/87,102.24 - Step 6: Final answer
x = 46,430.84
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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.