Finding the Fourth Proportional to 74,622.06, 102,979.35 and 40,630.41
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Solution
The fourth proportional to 74,622.06, 102,979.35 and 40,630.41 is: 56,070.46
Step by Step Solution
- Step 1: Write the proportion equation
74,622.06 : 102,979.35 = 40,630.41 : x - Step 2: Convert to fraction form
74,622.06/102,979.35 = 40,630.41/x - Step 3: Cross multiply
74,622.06x = 102,979.35 × 40,630.41 - Step 4: Simplify right side
74,622.06x = 4,184,093,212.03 - Step 5: Solve for x
x = 4,184,093,212.03/74,622.06 - Step 6: Final answer
x = 56,070.46
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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.