Finding the Fourth Proportional to 83,860.87, 115,730.86 and 48,057.79
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Solution
The fourth proportional to 83,860.87, 115,730.86 and 48,057.79 is: 66,321.39
Step by Step Solution
- Step 1: Write the proportion equation
83,860.87 : 115,730.86 = 48,057.79 : x - Step 2: Convert to fraction form
83,860.87/115,730.86 = 48,057.79/x - Step 3: Cross multiply
83,860.87x = 115,730.86 × 48,057.79 - Step 4: Simplify right side
83,860.87x = 5,561,769,366.40 - Step 5: Solve for x
x = 5,561,769,366.40/83,860.87 - Step 6: Final answer
x = 66,321.39
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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.