Finding the Fourth Proportional to 74,374.24, 102,640.08 and 40,840.96
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Solution
The fourth proportional to 74,374.24, 102,640.08 and 40,840.96 is: 56,362.52
Step by Step Solution
- Step 1: Write the proportion equation
74,374.24 : 102,640.08 = 40,840.96 : x - Step 2: Convert to fraction form
74,374.24/102,640.08 = 40,840.96/x - Step 3: Cross multiply
74,374.24x = 102,640.08 × 40,840.96 - Step 4: Simplify right side
74,374.24x = 4,191,919,401.68 - Step 5: Solve for x
x = 4,191,919,401.68/74,374.24 - Step 6: Final answer
x = 56,362.52
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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.