Finding the Fourth Proportional to 74,501.66, 111,825.93 and 54,724.70
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Solution
The fourth proportional to 74,501.66, 111,825.93 and 54,724.70 is: 82,140.99
Step by Step Solution
- Step 1: Write the proportion equation
74,501.66 : 111,825.93 = 54,724.70 : x - Step 2: Convert to fraction form
74,501.66/111,825.93 = 54,724.70/x - Step 3: Cross multiply
74,501.66x = 111,825.93 × 54,724.70 - Step 4: Simplify right side
74,501.66x = 6,119,640,471.47 - Step 5: Solve for x
x = 6,119,640,471.47/74,501.66 - Step 6: Final answer
x = 82,140.99
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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.