Finding the Fourth Proportional to 97,668.10, 134,781.33 and 55,226.80
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Solution
The fourth proportional to 97,668.10, 134,781.33 and 55,226.80 is: 76,212.62
Step by Step Solution
- Step 1: Write the proportion equation
97,668.10 : 134,781.33 = 55,226.80 : x - Step 2: Convert to fraction form
97,668.10/134,781.33 = 55,226.80/x - Step 3: Cross multiply
97,668.10x = 134,781.33 × 55,226.80 - Step 4: Simplify right side
97,668.10x = 7,443,541,555.64 - Step 5: Solve for x
x = 7,443,541,555.64/97,668.10 - Step 6: Final answer
x = 76,212.62
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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.