Finding the Fourth Proportional to 83,770.58, 125,655.79 and 21,440.98
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Solution
The fourth proportional to 83,770.58, 125,655.79 and 21,440.98 is: 32,161.45
Step by Step Solution
- Step 1: Write the proportion equation
83,770.58 : 125,655.79 = 21,440.98 : x - Step 2: Convert to fraction form
83,770.58/125,655.79 = 21,440.98/x - Step 3: Cross multiply
83,770.58x = 125,655.79 × 21,440.98 - Step 4: Simplify right side
83,770.58x = 2,694,183,280.27 - Step 5: Solve for x
x = 2,694,183,280.27/83,770.58 - Step 6: Final answer
x = 32,161.45
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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.