Finding the Fourth Proportional to 90,441.99, 124,813.98 and 50,153.05
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Solution
The fourth proportional to 90,441.99, 124,813.98 and 50,153.05 is: 69,213.45
Step by Step Solution
- Step 1: Write the proportion equation
90,441.99 : 124,813.98 = 50,153.05 : x - Step 2: Convert to fraction form
90,441.99/124,813.98 = 50,153.05/x - Step 3: Cross multiply
90,441.99x = 124,813.98 × 50,153.05 - Step 4: Simplify right side
90,441.99x = 6,259,801,935.66 - Step 5: Solve for x
x = 6,259,801,935.66/90,441.99 - Step 6: Final answer
x = 69,213.45
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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.