Finding the Fourth Proportional to 74,337.40, 102,585.18 and 40,346.56
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Solution
The fourth proportional to 74,337.40, 102,585.18 and 40,346.56 is: 55,678.02
Step by Step Solution
- Step 1: Write the proportion equation
74,337.40 : 102,585.18 = 40,346.56 : x - Step 2: Convert to fraction form
74,337.40/102,585.18 = 40,346.56/x - Step 3: Cross multiply
74,337.40x = 102,585.18 × 40,346.56 - Step 4: Simplify right side
74,337.40x = 4,138,959,119.98 - Step 5: Solve for x
x = 4,138,959,119.98/74,337.40 - Step 6: Final answer
x = 55,678.02
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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.