Finding the Fourth Proportional to 84,436.52, 126,799.67 and 74,970.23
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Solution
The fourth proportional to 84,436.52, 126,799.67 and 74,970.23 is: 112,583.99
Step by Step Solution
- Step 1: Write the proportion equation
84,436.52 : 126,799.67 = 74,970.23 : x - Step 2: Convert to fraction form
84,436.52/126,799.67 = 74,970.23/x - Step 3: Cross multiply
84,436.52x = 126,799.67 × 74,970.23 - Step 4: Simplify right side
84,436.52x = 9,506,200,423.82 - Step 5: Solve for x
x = 9,506,200,423.82/84,436.52 - Step 6: Final answer
x = 112,583.99
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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.