Finding the Fourth Proportional to 78,098.80, 107,774.04 and 44,108.68
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Solution
The fourth proportional to 78,098.80, 107,774.04 and 44,108.68 is: 60,868.68
Step by Step Solution
- Step 1: Write the proportion equation
78,098.80 : 107,774.04 = 44,108.68 : x - Step 2: Convert to fraction form
78,098.80/107,774.04 = 44,108.68/x - Step 3: Cross multiply
78,098.80x = 107,774.04 × 44,108.68 - Step 4: Simplify right side
78,098.80x = 4,753,770,642.67 - Step 5: Solve for x
x = 4,753,770,642.67/78,098.80 - Step 6: Final answer
x = 60,868.68
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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.