Finding the Fourth Proportional to 97,984.69, 135,221.60 and 55,545.95
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Solution
The fourth proportional to 97,984.69, 135,221.60 and 55,545.95 is: 76,654.96
Step by Step Solution
- Step 1: Write the proportion equation
97,984.69 : 135,221.60 = 55,545.95 : x - Step 2: Convert to fraction form
97,984.69/135,221.60 = 55,545.95/x - Step 3: Cross multiply
97,984.69x = 135,221.60 × 55,545.95 - Step 4: Simplify right side
97,984.69x = 7,511,012,709.44 - Step 5: Solve for x
x = 7,511,012,709.44/97,984.69 - Step 6: Final answer
x = 76,654.96
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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.