Finding the Fourth Proportional to 88,148.05, 121,645.70 and 47,861.79
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Solution
The fourth proportional to 88,148.05, 121,645.70 and 47,861.79 is: 66,050.02
Step by Step Solution
- Step 1: Write the proportion equation
88,148.05 : 121,645.70 = 47,861.79 : x - Step 2: Convert to fraction form
88,148.05/121,645.70 = 47,861.79/x - Step 3: Cross multiply
88,148.05x = 121,645.70 × 47,861.79 - Step 4: Simplify right side
88,148.05x = 5,822,180,431.80 - Step 5: Solve for x
x = 5,822,180,431.80/88,148.05 - Step 6: Final answer
x = 66,050.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.