Finding the Fourth Proportional to 76,891.36, 106,110.84 and 42,899.56
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Solution
The fourth proportional to 76,891.36, 106,110.84 and 42,899.56 is: 59,201.82
Step by Step Solution
- Step 1: Write the proportion equation
76,891.36 : 106,110.84 = 42,899.56 : x - Step 2: Convert to fraction form
76,891.36/106,110.84 = 42,899.56/x - Step 3: Cross multiply
76,891.36x = 106,110.84 × 42,899.56 - Step 4: Simplify right side
76,891.36x = 4,552,108,347.23 - Step 5: Solve for x
x = 4,552,108,347.23/76,891.36 - Step 6: Final answer
x = 59,201.82
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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.