Finding the Fourth Proportional to 79,742.34, 119,687.63 and 40,327.74
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Solution
The fourth proportional to 79,742.34, 119,687.63 and 40,327.74 is: 60,529.09
Step by Step Solution
- Step 1: Write the proportion equation
79,742.34 : 119,687.63 = 40,327.74 : x - Step 2: Convert to fraction form
79,742.34/119,687.63 = 40,327.74/x - Step 3: Cross multiply
79,742.34x = 119,687.63 × 40,327.74 - Step 4: Simplify right side
79,742.34x = 4,826,731,422.22 - Step 5: Solve for x
x = 4,826,731,422.22/79,742.34 - Step 6: Final answer
x = 60,529.09
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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.