Finding the Fourth Proportional to 89,247.11, 133,905.09 and 47,125.49
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Solution
The fourth proportional to 89,247.11, 133,905.09 and 47,125.49 is: 70,706.41
Step by Step Solution
- Step 1: Write the proportion equation
89,247.11 : 133,905.09 = 47,125.49 : x - Step 2: Convert to fraction form
89,247.11/133,905.09 = 47,125.49/x - Step 3: Cross multiply
89,247.11x = 133,905.09 × 47,125.49 - Step 4: Simplify right side
89,247.11x = 6,310,342,979.74 - Step 5: Solve for x
x = 6,310,342,979.74/89,247.11 - Step 6: Final answer
x = 70,706.41
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1.5x scale
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.