Finding the Fourth Proportional to 74,769.05, 103,178.43 and 41,235.05
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Solution
The fourth proportional to 74,769.05, 103,178.43 and 41,235.05 is: 56,902.79
Step by Step Solution
- Step 1: Write the proportion equation
74,769.05 : 103,178.43 = 41,235.05 : x - Step 2: Convert to fraction form
74,769.05/103,178.43 = 41,235.05/x - Step 3: Cross multiply
74,769.05x = 103,178.43 × 41,235.05 - Step 4: Simplify right side
74,769.05x = 4,254,567,977.92 - Step 5: Solve for x
x = 4,254,567,977.92/74,769.05 - Step 6: Final answer
x = 56,902.79
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1.5x scale
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.