Finding the Fourth Proportional to 91,246.30, 125,912.64 and 50,957.68
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Solution
The fourth proportional to 91,246.30, 125,912.64 and 50,957.68 is: 70,317.55
Step by Step Solution
- Step 1: Write the proportion equation
91,246.30 : 125,912.64 = 50,957.68 : x - Step 2: Convert to fraction form
91,246.30/125,912.64 = 50,957.68/x - Step 3: Cross multiply
91,246.30x = 125,912.64 × 50,957.68 - Step 4: Simplify right side
91,246.30x = 6,416,216,017.08 - Step 5: Solve for x
x = 6,416,216,017.08/91,246.30 - Step 6: Final answer
x = 70,317.55
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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.