Finding the Fourth Proportional to 75,873.32, 113,721.35 and 57,092.99
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Solution
The fourth proportional to 75,873.32, 113,721.35 and 57,092.99 is: 85,572.79
Step by Step Solution
- Step 1: Write the proportion equation
75,873.32 : 113,721.35 = 57,092.99 : x - Step 2: Convert to fraction form
75,873.32/113,721.35 = 57,092.99/x - Step 3: Cross multiply
75,873.32x = 113,721.35 × 57,092.99 - Step 4: Simplify right side
75,873.32x = 6,492,691,044.26 - Step 5: Solve for x
x = 6,492,691,044.26/75,873.32 - Step 6: Final answer
x = 85,572.79
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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.