Finding the Fourth Proportional to 89,780.42, 123,895.44 and 48,944.99
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Solution
The fourth proportional to 89,780.42, 123,895.44 and 48,944.99 is: 67,543.25
Step by Step Solution
- Step 1: Write the proportion equation
89,780.42 : 123,895.44 = 48,944.99 : x - Step 2: Convert to fraction form
89,780.42/123,895.44 = 48,944.99/x - Step 3: Cross multiply
89,780.42x = 123,895.44 × 48,944.99 - Step 4: Simplify right side
89,780.42x = 6,064,061,381.58 - Step 5: Solve for x
x = 6,064,061,381.58/89,780.42 - Step 6: Final answer
x = 67,543.25
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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.