Finding the Fourth Proportional to 74,547.20, 102,838.92 and 44,311.10
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Solution
The fourth proportional to 74,547.20, 102,838.92 and 44,311.10 is: 61,127.79
Step by Step Solution
- Step 1: Write the proportion equation
74,547.20 : 102,838.92 = 44,311.10 : x - Step 2: Convert to fraction form
74,547.20/102,838.92 = 44,311.10/x - Step 3: Cross multiply
74,547.20x = 102,838.92 × 44,311.10 - Step 4: Simplify right side
74,547.20x = 4,556,905,153.82 - Step 5: Solve for x
x = 4,556,905,153.82/74,547.20 - Step 6: Final answer
x = 61,127.79
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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.