Finding the Fourth Proportional to 76,043.62, 104,935.92 and 42,050.08
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Solution
The fourth proportional to 76,043.62, 104,935.92 and 42,050.08 is: 58,026.75
Step by Step Solution
- Step 1: Write the proportion equation
76,043.62 : 104,935.92 = 42,050.08 : x - Step 2: Convert to fraction form
76,043.62/104,935.92 = 42,050.08/x - Step 3: Cross multiply
76,043.62x = 104,935.92 × 42,050.08 - Step 4: Simplify right side
76,043.62x = 4,412,563,830.87 - Step 5: Solve for x
x = 4,412,563,830.87/76,043.62 - Step 6: Final answer
x = 58,026.75
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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.