Finding the Fourth Proportional to 75,358.44, 103,988.13 and 41,366.80
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Solution
The fourth proportional to 75,358.44, 103,988.13 and 41,366.80 is: 57,082.61
Step by Step Solution
- Step 1: Write the proportion equation
75,358.44 : 103,988.13 = 41,366.80 : x - Step 2: Convert to fraction form
75,358.44/103,988.13 = 41,366.80/x - Step 3: Cross multiply
75,358.44x = 103,988.13 × 41,366.80 - Step 4: Simplify right side
75,358.44x = 4,301,656,267.29 - Step 5: Solve for x
x = 4,301,656,267.29/75,358.44 - Step 6: Final answer
x = 57,082.61
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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.