Finding the Fourth Proportional to 81,904.95, 122,863.01 and 27,847.62
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Solution
The fourth proportional to 81,904.95, 122,863.01 and 27,847.62 is: 41,773.33
Step by Step Solution
- Step 1: Write the proportion equation
81,904.95 : 122,863.01 = 27,847.62 : x - Step 2: Convert to fraction form
81,904.95/122,863.01 = 27,847.62/x - Step 3: Cross multiply
81,904.95x = 122,863.01 × 27,847.62 - Step 4: Simplify right side
81,904.95x = 3,421,442,275.30 - Step 5: Solve for x
x = 3,421,442,275.30/81,904.95 - Step 6: Final answer
x = 41,773.33
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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.