Finding the Fourth Proportional to 76,581.84, 105,572.16 and 50,697.02
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Solution
The fourth proportional to 76,581.84, 105,572.16 and 50,697.02 is: 69,888.54
Step by Step Solution
- Step 1: Write the proportion equation
76,581.84 : 105,572.16 = 50,697.02 : x - Step 2: Convert to fraction form
76,581.84/105,572.16 = 50,697.02/x - Step 3: Cross multiply
76,581.84x = 105,572.16 × 50,697.02 - Step 4: Simplify right side
76,581.84x = 5,352,193,511.63 - Step 5: Solve for x
x = 5,352,193,511.63/76,581.84 - Step 6: Final answer
x = 69,888.54
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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.