Finding the Fourth Proportional to 74,440.98, 102,734.85 and 40,913.94
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Solution
The fourth proportional to 74,440.98, 102,734.85 and 40,913.94 is: 56,464.70
Step by Step Solution
- Step 1: Write the proportion equation
74,440.98 : 102,734.85 = 40,913.94 : x - Step 2: Convert to fraction form
74,440.98/102,734.85 = 40,913.94/x - Step 3: Cross multiply
74,440.98x = 102,734.85 × 40,913.94 - Step 4: Simplify right side
74,440.98x = 4,203,287,488.81 - Step 5: Solve for x
x = 4,203,287,488.81/74,440.98 - Step 6: Final answer
x = 56,464.70
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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.