Finding the Fourth Proportional to 75,036.99, 112,555.49 and 30,663.70
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Solution
The fourth proportional to 75,036.99, 112,555.49 and 30,663.70 is: 45,995.55
Step by Step Solution
- Step 1: Write the proportion equation
75,036.99 : 112,555.49 = 30,663.70 : x - Step 2: Convert to fraction form
75,036.99/112,555.49 = 30,663.70/x - Step 3: Cross multiply
75,036.99x = 112,555.49 × 30,663.70 - Step 4: Simplify right side
75,036.99x = 3,451,367,778.71 - Step 5: Solve for x
x = 3,451,367,778.71/75,036.99 - Step 6: Final answer
x = 45,995.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.