Finding the Fourth Proportional to 87,237.18, 120,377.75 and 48,988.98
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Solution
The fourth proportional to 87,237.18, 120,377.75 and 48,988.98 is: 67,599.42
Step by Step Solution
- Step 1: Write the proportion equation
87,237.18 : 120,377.75 = 48,988.98 : x - Step 2: Convert to fraction form
87,237.18/120,377.75 = 48,988.98/x - Step 3: Cross multiply
87,237.18x = 120,377.75 × 48,988.98 - Step 4: Simplify right side
87,237.18x = 5,897,182,942.25 - Step 5: Solve for x
x = 5,897,182,942.25/87,237.18 - Step 6: Final answer
x = 67,599.42
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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.