Finding the Fourth Proportional to 94,143.84, 129,920.75 and 51,703.28
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Solution
The fourth proportional to 94,143.84, 129,920.75 and 51,703.28 is: 71,351.75
Step by Step Solution
- Step 1: Write the proportion equation
94,143.84 : 129,920.75 = 51,703.28 : x - Step 2: Convert to fraction form
94,143.84/129,920.75 = 51,703.28/x - Step 3: Cross multiply
94,143.84x = 129,920.75 × 51,703.28 - Step 4: Simplify right side
94,143.84x = 6,717,328,006.94 - Step 5: Solve for x
x = 6,717,328,006.94/94,143.84 - Step 6: Final answer
x = 71,351.75
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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.