Finding the Fourth Proportional to 75,365.84, 113,064.76 and 28,617.68
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Solution
The fourth proportional to 75,365.84, 113,064.76 and 28,617.68 is: 42,932.60
Step by Step Solution
- Step 1: Write the proportion equation
75,365.84 : 113,064.76 = 28,617.68 : x - Step 2: Convert to fraction form
75,365.84/113,064.76 = 28,617.68/x - Step 3: Cross multiply
75,365.84x = 113,064.76 × 28,617.68 - Step 4: Simplify right side
75,365.84x = 3,235,651,120.96 - Step 5: Solve for x
x = 3,235,651,120.96/75,365.84 - Step 6: Final answer
x = 42,932.60
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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.