Finding the Fourth Proportional to 88,756.40, 133,069.80 and 36,138.80
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Solution
The fourth proportional to 88,756.40, 133,069.80 and 36,138.80 is: 54,181.82
Step by Step Solution
- Step 1: Write the proportion equation
88,756.40 : 133,069.80 = 36,138.80 : x - Step 2: Convert to fraction form
88,756.40/133,069.80 = 36,138.80/x - Step 3: Cross multiply
88,756.40x = 133,069.80 × 36,138.80 - Step 4: Simplify right side
88,756.40x = 4,808,982,888.24 - Step 5: Solve for x
x = 4,808,982,888.24/88,756.40 - Step 6: Final answer
x = 54,181.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.