Finding the Fourth Proportional to 91,246.50, 125,884.94 and 57,241.08
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Solution
The fourth proportional to 91,246.50, 125,884.94 and 57,241.08 is: 78,970.59
Step by Step Solution
- Step 1: Write the proportion equation
91,246.50 : 125,884.94 = 57,241.08 : x - Step 2: Convert to fraction form
91,246.50/125,884.94 = 57,241.08/x - Step 3: Cross multiply
91,246.50x = 125,884.94 × 57,241.08 - Step 4: Simplify right side
91,246.50x = 7,205,789,635.13 - Step 5: Solve for x
x = 7,205,789,635.13/91,246.50 - Step 6: Final answer
x = 78,970.59
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1.5x scale
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.