Finding the Fourth Proportional to 86,872.87, 130,306.06 and 31,468.87
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Solution
The fourth proportional to 86,872.87, 130,306.06 and 31,468.87 is: 47,202.12
Step by Step Solution
- Step 1: Write the proportion equation
86,872.87 : 130,306.06 = 31,468.87 : x - Step 2: Convert to fraction form
86,872.87/130,306.06 = 31,468.87/x - Step 3: Cross multiply
86,872.87x = 130,306.06 × 31,468.87 - Step 4: Simplify right side
86,872.87x = 4,100,583,653.48 - Step 5: Solve for x
x = 4,100,583,653.48/86,872.87 - Step 6: Final answer
x = 47,202.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.