Finding the Fourth Proportional to 81,771.06, 112,845.12 and 45,958.98
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Solution
The fourth proportional to 81,771.06, 112,845.12 and 45,958.98 is: 63,423.99
Step by Step Solution
- Step 1: Write the proportion equation
81,771.06 : 112,845.12 = 45,958.98 : x - Step 2: Convert to fraction form
81,771.06/112,845.12 = 45,958.98/x - Step 3: Cross multiply
81,771.06x = 112,845.12 × 45,958.98 - Step 4: Simplify right side
81,771.06x = 5,186,246,613.18 - Step 5: Solve for x
x = 5,186,246,613.18/81,771.06 - Step 6: Final answer
x = 63,423.99
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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.