Finding the Fourth Proportional to 84,891.70, 127,337.55 and 40,539.70
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Solution
The fourth proportional to 84,891.70, 127,337.55 and 40,539.70 is: 60,809.55
Step by Step Solution
- Step 1: Write the proportion equation
84,891.70 : 127,337.55 = 40,539.70 : x - Step 2: Convert to fraction form
84,891.70/127,337.55 = 40,539.70/x - Step 3: Cross multiply
84,891.70x = 127,337.55 × 40,539.70 - Step 4: Simplify right side
84,891.70x = 5,162,226,075.74 - Step 5: Solve for x
x = 5,162,226,075.74/84,891.70 - Step 6: Final answer
x = 60,809.55
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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.