Finding the Fourth Proportional to 74,671.79, 111,744.47 and 46,604.99
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Solution
The fourth proportional to 74,671.79, 111,744.47 and 46,604.99 is: 69,743.20
Step by Step Solution
- Step 1: Write the proportion equation
74,671.79 : 111,744.47 = 46,604.99 : x - Step 2: Convert to fraction form
74,671.79/111,744.47 = 46,604.99/x - Step 3: Cross multiply
74,671.79x = 111,744.47 × 46,604.99 - Step 4: Simplify right side
74,671.79x = 5,207,849,464.70 - Step 5: Solve for x
x = 5,207,849,464.70/74,671.79 - Step 6: Final answer
x = 69,743.20
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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.