Finding the Fourth Proportional to 75,893.99, 113,820.20 and 28,505.42
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Solution
The fourth proportional to 75,893.99, 113,820.20 and 28,505.42 is: 42,750.32
Step by Step Solution
- Step 1: Write the proportion equation
75,893.99 : 113,820.20 = 28,505.42 : x - Step 2: Convert to fraction form
75,893.99/113,820.20 = 28,505.42/x - Step 3: Cross multiply
75,893.99x = 113,820.20 × 28,505.42 - Step 4: Simplify right side
75,893.99x = 3,244,492,605.48 - Step 5: Solve for x
x = 3,244,492,605.48/75,893.99 - Step 6: Final answer
x = 42,750.32
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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.