Finding the Fourth Proportional to 75,772.10, 104,540.08 and 48,932.74
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Solution
The fourth proportional to 75,772.10, 104,540.08 and 48,932.74 is: 67,510.77
Step by Step Solution
- Step 1: Write the proportion equation
75,772.10 : 104,540.08 = 48,932.74 : x - Step 2: Convert to fraction form
75,772.10/104,540.08 = 48,932.74/x - Step 3: Cross multiply
75,772.10x = 104,540.08 × 48,932.74 - Step 4: Simplify right side
75,772.10x = 5,115,432,554.22 - Step 5: Solve for x
x = 5,115,432,554.22/75,772.10 - Step 6: Final answer
x = 67,510.77
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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.