Finding the Fourth Proportional to 94,145.65, 129,920.57 and 51,124.80
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Solution
The fourth proportional to 94,145.65, 129,920.57 and 51,124.80 is: 70,551.99
Step by Step Solution
- Step 1: Write the proportion equation
94,145.65 : 129,920.57 = 51,124.80 : x - Step 2: Convert to fraction form
94,145.65/129,920.57 = 51,124.80/x - Step 3: Cross multiply
94,145.65x = 129,920.57 × 51,124.80 - Step 4: Simplify right side
94,145.65x = 6,642,163,157.14 - Step 5: Solve for x
x = 6,642,163,157.14/94,145.65 - Step 6: Final answer
x = 70,551.99
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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.