Finding the Fourth Proportional to 99,616.84, 137,471.29 and 56,596.41
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Solution
The fourth proportional to 99,616.84, 137,471.29 and 56,596.41 is: 78,103.07
Step by Step Solution
- Step 1: Write the proportion equation
99,616.84 : 137,471.29 = 56,596.41 : x - Step 2: Convert to fraction form
99,616.84/137,471.29 = 56,596.41/x - Step 3: Cross multiply
99,616.84x = 137,471.29 × 56,596.41 - Step 4: Simplify right side
99,616.84x = 7,780,381,229.24 - Step 5: Solve for x
x = 7,780,381,229.24/99,616.84 - Step 6: Final answer
x = 78,103.07
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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.