Finding the Fourth Proportional to 74,196.46, 102,390.15 and 40,204.99
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Solution
The fourth proportional to 74,196.46, 102,390.15 and 40,204.99 is: 55,482.36
Step by Step Solution
- Step 1: Write the proportion equation
74,196.46 : 102,390.15 = 40,204.99 : x - Step 2: Convert to fraction form
74,196.46/102,390.15 = 40,204.99/x - Step 3: Cross multiply
74,196.46x = 102,390.15 × 40,204.99 - Step 4: Simplify right side
74,196.46x = 4,116,594,956.85 - Step 5: Solve for x
x = 4,116,594,956.85/74,196.46 - Step 6: Final answer
x = 55,482.36
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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.