Finding the Fourth Proportional to 94,116.82, 129,881.44 and 51,678.09
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Solution
The fourth proportional to 94,116.82, 129,881.44 and 51,678.09 is: 71,315.89
Step by Step Solution
- Step 1: Write the proportion equation
94,116.82 : 129,881.44 = 51,678.09 : x - Step 2: Convert to fraction form
94,116.82/129,881.44 = 51,678.09/x - Step 3: Cross multiply
94,116.82x = 129,881.44 × 51,678.09 - Step 4: Simplify right side
94,116.82x = 6,712,024,745.65 - Step 5: Solve for x
x = 6,712,024,745.65/94,116.82 - Step 6: Final answer
x = 71,315.89
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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.