Finding the Fourth Proportional to 80,364.15, 110,905.20 and 48,526.70
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Solution
The fourth proportional to 80,364.15, 110,905.20 and 48,526.70 is: 66,968.45
Step by Step Solution
- Step 1: Write the proportion equation
80,364.15 : 110,905.20 = 48,526.70 : x - Step 2: Convert to fraction form
80,364.15/110,905.20 = 48,526.70/x - Step 3: Cross multiply
80,364.15x = 110,905.20 × 48,526.70 - Step 4: Simplify right side
80,364.15x = 5,381,862,814.31 - Step 5: Solve for x
x = 5,381,862,814.31/80,364.15 - Step 6: Final answer
x = 66,968.45
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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.