Finding the Fourth Proportional to 50,471.60, 69,652.39 and 28,965.28
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Solution
The fourth proportional to 50,471.60, 69,652.39 and 28,965.28 is: 39,972.99
Step by Step Solution
- Step 1: Write the proportion equation
50,471.60 : 69,652.39 = 28,965.28 : x - Step 2: Convert to fraction form
50,471.60/69,652.39 = 28,965.28/x - Step 3: Cross multiply
50,471.60x = 69,652.39 × 28,965.28 - Step 4: Simplify right side
50,471.60x = 2,017,500,979.02 - Step 5: Solve for x
x = 2,017,500,979.02/50,471.60 - Step 6: Final answer
x = 39,972.99
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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.