Finding the Fourth Proportional to 76,360.42, 113,920.56 and 72,226.99
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Solution
The fourth proportional to 76,360.42, 113,920.56 and 72,226.99 is: 107,753.98
Step by Step Solution
- Step 1: Write the proportion equation
76,360.42 : 113,920.56 = 72,226.99 : x - Step 2: Convert to fraction form
76,360.42/113,920.56 = 72,226.99/x - Step 3: Cross multiply
76,360.42x = 113,920.56 × 72,226.99 - Step 4: Simplify right side
76,360.42x = 8,228,139,290.32 - Step 5: Solve for x
x = 8,228,139,290.32/76,360.42 - Step 6: Final answer
x = 107,753.98
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.