Finding the Fourth Proportional to 79,751.13, 119,429.74 and 59,439.19
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Solution
The fourth proportional to 79,751.13, 119,429.74 and 59,439.19 is: 89,011.99
Step by Step Solution
- Step 1: Write the proportion equation
79,751.13 : 119,429.74 = 59,439.19 : x - Step 2: Convert to fraction form
79,751.13/119,429.74 = 59,439.19/x - Step 3: Cross multiply
79,751.13x = 119,429.74 × 59,439.19 - Step 4: Simplify right side
79,751.13x = 7,098,806,672.82 - Step 5: Solve for x
x = 7,098,806,672.82/79,751.13 - Step 6: Final answer
x = 89,011.99
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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.