Finding the Fourth Proportional to 74,997.36, 112,537.55 and 44,937.75
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Solution
The fourth proportional to 74,997.36, 112,537.55 and 44,937.75 is: 67,431.50
Step by Step Solution
- Step 1: Write the proportion equation
74,997.36 : 112,537.55 = 44,937.75 : x - Step 2: Convert to fraction form
74,997.36/112,537.55 = 44,937.75/x - Step 3: Cross multiply
74,997.36x = 112,537.55 × 44,937.75 - Step 4: Simplify right side
74,997.36x = 5,057,184,821.87 - Step 5: Solve for x
x = 5,057,184,821.87/74,997.36 - Step 6: Final answer
x = 67,431.50
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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.