Finding the Fourth Proportional to 91,038.87, 125,642.84 and 50,759.19
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Solution
The fourth proportional to 91,038.87, 125,642.84 and 50,759.19 is: 70,052.81
Step by Step Solution
- Step 1: Write the proportion equation
91,038.87 : 125,642.84 = 50,759.19 : x - Step 2: Convert to fraction form
91,038.87/125,642.84 = 50,759.19/x - Step 3: Cross multiply
91,038.87x = 125,642.84 × 50,759.19 - Step 4: Simplify right side
91,038.87x = 6,377,528,533.90 - Step 5: Solve for x
x = 6,377,528,533.90/91,038.87 - Step 6: Final answer
x = 70,052.81
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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.