Finding the Fourth Proportional to 74,489.63, 102,795.68 and 40,955.63
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Solution
The fourth proportional to 74,489.63, 102,795.68 and 40,955.63 is: 56,518.76
Step by Step Solution
- Step 1: Write the proportion equation
74,489.63 : 102,795.68 = 40,955.63 : x - Step 2: Convert to fraction form
74,489.63/102,795.68 = 40,955.63/x - Step 3: Cross multiply
74,489.63x = 102,795.68 × 40,955.63 - Step 4: Simplify right side
74,489.63x = 4,210,061,424.09 - Step 5: Solve for x
x = 4,210,061,424.09/74,489.63 - Step 6: Final answer
x = 56,518.76
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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.