Finding the Fourth Proportional to 75,818.04, 104,607.90 and 48,961.68
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Solution
The fourth proportional to 75,818.04, 104,607.90 and 48,961.68 is: 67,553.56
Step by Step Solution
- Step 1: Write the proportion equation
75,818.04 : 104,607.90 = 48,961.68 : x - Step 2: Convert to fraction form
75,818.04/104,607.90 = 48,961.68/x - Step 3: Cross multiply
75,818.04x = 104,607.90 × 48,961.68 - Step 4: Simplify right side
75,818.04x = 5,121,778,525.27 - Step 5: Solve for x
x = 5,121,778,525.27/75,818.04 - Step 6: Final answer
x = 67,553.56
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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.