Finding the Fourth Proportional to 71,741.40, 107,590.16 and 57,668.06
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Solution
The fourth proportional to 71,741.40, 107,590.16 and 57,668.06 is: 86,484.45
Step by Step Solution
- Step 1: Write the proportion equation
71,741.40 : 107,590.16 = 57,668.06 : x - Step 2: Convert to fraction form
71,741.40/107,590.16 = 57,668.06/x - Step 3: Cross multiply
71,741.40x = 107,590.16 × 57,668.06 - Step 4: Simplify right side
71,741.40x = 6,204,515,802.29 - Step 5: Solve for x
x = 6,204,515,802.29/71,741.40 - Step 6: Final answer
x = 86,484.45
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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.