Finding the Fourth Proportional to 74,191.05, 102,430.85 and 48,742.65
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Solution
The fourth proportional to 74,191.05, 102,430.85 and 48,742.65 is: 67,295.86
Step by Step Solution
- Step 1: Write the proportion equation
74,191.05 : 102,430.85 = 48,742.65 : x - Step 2: Convert to fraction form
74,191.05/102,430.85 = 48,742.65/x - Step 3: Cross multiply
74,191.05x = 102,430.85 × 48,742.65 - Step 4: Simplify right side
74,191.05x = 4,992,750,827.04 - Step 5: Solve for x
x = 4,992,750,827.04/74,191.05 - Step 6: Final answer
x = 67,295.86
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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.