Finding the Fourth Proportional to 80,783.36, 121,159.68 and 27,477.76
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Solution
The fourth proportional to 80,783.36, 121,159.68 and 27,477.76 is: 41,211.42
Step by Step Solution
- Step 1: Write the proportion equation
80,783.36 : 121,159.68 = 27,477.76 : x - Step 2: Convert to fraction form
80,783.36/121,159.68 = 27,477.76/x - Step 3: Cross multiply
80,783.36x = 121,159.68 × 27,477.76 - Step 4: Simplify right side
80,783.36x = 3,329,196,608.72 - Step 5: Solve for x
x = 3,329,196,608.72/80,783.36 - Step 6: Final answer
x = 41,211.42
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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.