Finding the Fourth Proportional to 91,176.32, 125,724.12 and 59,286.08
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Solution
The fourth proportional to 91,176.32, 125,724.12 and 59,286.08 is: 81,750.28
Step by Step Solution
- Step 1: Write the proportion equation
91,176.32 : 125,724.12 = 59,286.08 : x - Step 2: Convert to fraction form
91,176.32/125,724.12 = 59,286.08/x - Step 3: Cross multiply
91,176.32x = 125,724.12 × 59,286.08 - Step 4: Simplify right side
91,176.32x = 7,453,689,607.63 - Step 5: Solve for x
x = 7,453,689,607.63/91,176.32 - Step 6: Final answer
x = 81,750.28
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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.