Finding the Fourth Proportional to 75,894.24, 113,820.57 and 28,505.67
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Solution
The fourth proportional to 75,894.24, 113,820.57 and 28,505.67 is: 42,750.70
Step by Step Solution
- Step 1: Write the proportion equation
75,894.24 : 113,820.57 = 28,505.67 : x - Step 2: Convert to fraction form
75,894.24/113,820.57 = 28,505.67/x - Step 3: Cross multiply
75,894.24x = 113,820.57 × 28,505.67 - Step 4: Simplify right side
75,894.24x = 3,244,531,607.63 - Step 5: Solve for x
x = 3,244,531,607.63/75,894.24 - Step 6: Final answer
x = 42,750.70
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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.