Finding the Fourth Proportional to 75,320.40, 113,110.20 and 40,328.40
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Solution
The fourth proportional to 75,320.40, 113,110.20 and 40,328.40 is: 60,561.99
Step by Step Solution
- Step 1: Write the proportion equation
75,320.40 : 113,110.20 = 40,328.40 : x - Step 2: Convert to fraction form
75,320.40/113,110.20 = 40,328.40/x - Step 3: Cross multiply
75,320.40x = 113,110.20 × 40,328.40 - Step 4: Simplify right side
75,320.40x = 4,561,553,389.68 - Step 5: Solve for x
x = 4,561,553,389.68/75,320.40 - Step 6: Final answer
x = 60,561.99
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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.