Finding the Fourth Proportional to 89,816.24, 134,636.28 and 76,519.28
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Solution
The fourth proportional to 89,816.24, 134,636.28 and 76,519.28 is: 114,703.88
Step by Step Solution
- Step 1: Write the proportion equation
89,816.24 : 134,636.28 = 76,519.28 : x - Step 2: Convert to fraction form
89,816.24/134,636.28 = 76,519.28/x - Step 3: Cross multiply
89,816.24x = 134,636.28 × 76,519.28 - Step 4: Simplify right side
89,816.24x = 10,302,271,207.48 - Step 5: Solve for x
x = 10,302,271,207.48/89,816.24 - Step 6: Final answer
x = 114,703.88
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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.