Finding the Fourth Proportional to 75,710.32, 104,478.84 and 41,721.95
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Solution
The fourth proportional to 75,710.32, 104,478.84 and 41,721.95 is: 57,575.52
Step by Step Solution
- Step 1: Write the proportion equation
75,710.32 : 104,478.84 = 41,721.95 : x - Step 2: Convert to fraction form
75,710.32/104,478.84 = 41,721.95/x - Step 3: Cross multiply
75,710.32x = 104,478.84 × 41,721.95 - Step 4: Simplify right side
75,710.32x = 4,359,061,199.74 - Step 5: Solve for x
x = 4,359,061,199.74/75,710.32 - Step 6: Final answer
x = 57,575.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.