Finding the Fourth Proportional to 79,911.74, 110,319.66 and 58,377.31
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Solution
The fourth proportional to 79,911.74, 110,319.66 and 58,377.31 is: 80,590.97
Step by Step Solution
- Step 1: Write the proportion equation
79,911.74 : 110,319.66 = 58,377.31 : x - Step 2: Convert to fraction form
79,911.74/110,319.66 = 58,377.31/x - Step 3: Cross multiply
79,911.74x = 110,319.66 × 58,377.31 - Step 4: Simplify right side
79,911.74x = 6,440,164,990.91 - Step 5: Solve for x
x = 6,440,164,990.91/79,911.74 - Step 6: Final answer
x = 80,590.97
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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.