Finding the Fourth Proportional to 90,775.20, 125,260.99 and 52,527.12
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Solution
The fourth proportional to 90,775.20, 125,260.99 and 52,527.12 is: 72,482.34
Step by Step Solution
- Step 1: Write the proportion equation
90,775.20 : 125,260.99 = 52,527.12 : x - Step 2: Convert to fraction form
90,775.20/125,260.99 = 52,527.12/x - Step 3: Cross multiply
90,775.20x = 125,260.99 × 52,527.12 - Step 4: Simplify right side
90,775.20x = 6,579,599,053.05 - Step 5: Solve for x
x = 6,579,599,053.05/90,775.20 - Step 6: Final answer
x = 72,482.34
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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.