Finding the Fourth Proportional to 42,891.24, 59,218.80 and 26,783.08
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Solution
The fourth proportional to 42,891.24, 59,218.80 and 26,783.08 is: 36,978.69
Step by Step Solution
- Step 1: Write the proportion equation
42,891.24 : 59,218.80 = 26,783.08 : x - Step 2: Convert to fraction form
42,891.24/59,218.80 = 26,783.08/x - Step 3: Cross multiply
42,891.24x = 59,218.80 × 26,783.08 - Step 4: Simplify right side
42,891.24x = 1,586,061,857.90 - Step 5: Solve for x
x = 1,586,061,857.90/42,891.24 - Step 6: Final answer
x = 36,978.69
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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.