Finding the Fourth Proportional to 81,994.23, 113,160.08 and 48,000.65
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Solution
The fourth proportional to 81,994.23, 113,160.08 and 48,000.65 is: 66,245.60
Step by Step Solution
- Step 1: Write the proportion equation
81,994.23 : 113,160.08 = 48,000.65 : x - Step 2: Convert to fraction form
81,994.23/113,160.08 = 48,000.65/x - Step 3: Cross multiply
81,994.23x = 113,160.08 × 48,000.65 - Step 4: Simplify right side
81,994.23x = 5,431,756,588.25 - Step 5: Solve for x
x = 5,431,756,588.25/81,994.23 - Step 6: Final answer
x = 66,245.60
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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.