Finding the Fourth Proportional to 99,777.20, 149,665.62 and 40,599.68
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Solution
The fourth proportional to 99,777.20, 149,665.62 and 40,599.68 is: 60,899.45
Step by Step Solution
- Step 1: Write the proportion equation
99,777.20 : 149,665.62 = 40,599.68 : x - Step 2: Convert to fraction form
99,777.20/149,665.62 = 40,599.68/x - Step 3: Cross multiply
99,777.20x = 149,665.62 × 40,599.68 - Step 4: Simplify right side
99,777.20x = 6,076,376,279.00 - Step 5: Solve for x
x = 6,076,376,279.00/99,777.20 - Step 6: Final answer
x = 60,899.45
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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.