Finding the Fourth Proportional to 74,356.34, 102,608.24 and 40,364.06
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Solution
The fourth proportional to 74,356.34, 102,608.24 and 40,364.06 is: 55,700.50
Step by Step Solution
- Step 1: Write the proportion equation
74,356.34 : 102,608.24 = 40,364.06 : x - Step 2: Convert to fraction form
74,356.34/102,608.24 = 40,364.06/x - Step 3: Cross multiply
74,356.34x = 102,608.24 × 40,364.06 - Step 4: Simplify right side
74,356.34x = 4,141,685,155.85 - Step 5: Solve for x
x = 4,141,685,155.85/74,356.34 - Step 6: Final answer
x = 55,700.50
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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.