Finding the Fourth Proportional to 73,964.13, 102,072.11 and 40,430.13
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Solution
The fourth proportional to 73,964.13, 102,072.11 and 40,430.13 is: 55,794.46
Step by Step Solution
- Step 1: Write the proportion equation
73,964.13 : 102,072.11 = 40,430.13 : x - Step 2: Convert to fraction form
73,964.13/102,072.11 = 40,430.13/x - Step 3: Cross multiply
73,964.13x = 102,072.11 × 40,430.13 - Step 4: Simplify right side
73,964.13x = 4,126,788,676.67 - Step 5: Solve for x
x = 4,126,788,676.67/73,964.13 - Step 6: Final answer
x = 55,794.46
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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.