Finding the Fourth Proportional to 97,986.24, 135,220.68 and 55,553.04
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Solution
The fourth proportional to 97,986.24, 135,220.68 and 55,553.04 is: 76,663.01
Step by Step Solution
- Step 1: Write the proportion equation
97,986.24 : 135,220.68 = 55,553.04 : x - Step 2: Convert to fraction form
97,986.24/135,220.68 = 55,553.04/x - Step 3: Cross multiply
97,986.24x = 135,220.68 × 55,553.04 - Step 4: Simplify right side
97,986.24x = 7,511,919,844.87 - Step 5: Solve for x
x = 7,511,919,844.87/97,986.24 - Step 6: Final answer
x = 76,663.01
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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.