Finding the Fourth Proportional to 89,891.13, 134,794.98 and 52,461.99
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Solution
The fourth proportional to 89,891.13, 134,794.98 and 52,461.99 is: 78,668.64
Step by Step Solution
- Step 1: Write the proportion equation
89,891.13 : 134,794.98 = 52,461.99 : x - Step 2: Convert to fraction form
89,891.13/134,794.98 = 52,461.99/x - Step 3: Cross multiply
89,891.13x = 134,794.98 × 52,461.99 - Step 4: Simplify right side
89,891.13x = 7,071,612,892.81 - Step 5: Solve for x
x = 7,071,612,892.81/89,891.13 - Step 6: Final answer
x = 78,668.64
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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.