Finding the Fourth Proportional to 74,627.49, 102,983.53 and 40,635.70
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Solution
The fourth proportional to 74,627.49, 102,983.53 and 40,635.70 is: 56,075.96
Step by Step Solution
- Step 1: Write the proportion equation
74,627.49 : 102,983.53 = 40,635.70 : x - Step 2: Convert to fraction form
74,627.49/102,983.53 = 40,635.70/x - Step 3: Cross multiply
74,627.49x = 102,983.53 × 40,635.70 - Step 4: Simplify right side
74,627.49x = 4,184,807,830.02 - Step 5: Solve for x
x = 4,184,807,830.02/74,627.49 - Step 6: Final answer
x = 56,075.96
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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.