Finding the Fourth Proportional to 75,511.60, 113,137.80 and 49,202.80
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Solution
The fourth proportional to 75,511.60, 113,137.80 and 49,202.80 is: 73,719.75
Step by Step Solution
- Step 1: Write the proportion equation
75,511.60 : 113,137.80 = 49,202.80 : x - Step 2: Convert to fraction form
75,511.60/113,137.80 = 49,202.80/x - Step 3: Cross multiply
75,511.60x = 113,137.80 × 49,202.80 - Step 4: Simplify right side
75,511.60x = 5,566,696,545.84 - Step 5: Solve for x
x = 5,566,696,545.84/75,511.60 - Step 6: Final answer
x = 73,719.75
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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.