Finding the Fourth Proportional to 80,765.19, 121,140.84 and 49,167.05
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Solution
The fourth proportional to 80,765.19, 121,140.84 and 49,167.05 is: 73,746.34
Step by Step Solution
- Step 1: Write the proportion equation
80,765.19 : 121,140.84 = 49,167.05 : x - Step 2: Convert to fraction form
80,765.19/121,140.84 = 49,167.05/x - Step 3: Cross multiply
80,765.19x = 121,140.84 × 49,167.05 - Step 4: Simplify right side
80,765.19x = 5,956,137,131.62 - Step 5: Solve for x
x = 5,956,137,131.62/80,765.19 - Step 6: Final answer
x = 73,746.34
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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.