Finding the Fourth Proportional to 74,427.83, 102,709.97 and 40,436.08
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Solution
The fourth proportional to 74,427.83, 102,709.97 and 40,436.08 is: 55,801.55
Step by Step Solution
- Step 1: Write the proportion equation
74,427.83 : 102,709.97 = 40,436.08 : x - Step 2: Convert to fraction form
74,427.83/102,709.97 = 40,436.08/x - Step 3: Cross multiply
74,427.83x = 102,709.97 × 40,436.08 - Step 4: Simplify right side
74,427.83x = 4,153,188,483.85 - Step 5: Solve for x
x = 4,153,188,483.85/74,427.83 - Step 6: Final answer
x = 55,801.55
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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.