Finding the Fourth Proportional to 68,609.91, 102,808.58 and 47,590.82
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Solution
The fourth proportional to 68,609.91, 102,808.58 and 47,590.82 is: 71,312.50
Step by Step Solution
- Step 1: Write the proportion equation
68,609.91 : 102,808.58 = 47,590.82 : x - Step 2: Convert to fraction form
68,609.91/102,808.58 = 47,590.82/x - Step 3: Cross multiply
68,609.91x = 102,808.58 × 47,590.82 - Step 4: Simplify right side
68,609.91x = 4,892,744,111.19 - Step 5: Solve for x
x = 4,892,744,111.19/68,609.91 - Step 6: Final answer
x = 71,312.50
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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.