Finding the Fourth Proportional to 75,678.99, 104,437.04 and 43,866.33
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Solution
The fourth proportional to 75,678.99, 104,437.04 and 43,866.33 is: 60,535.55
Step by Step Solution
- Step 1: Write the proportion equation
75,678.99 : 104,437.04 = 43,866.33 : x - Step 2: Convert to fraction form
75,678.99/104,437.04 = 43,866.33/x - Step 3: Cross multiply
75,678.99x = 104,437.04 × 43,866.33 - Step 4: Simplify right side
75,678.99x = 4,581,269,441.53 - Step 5: Solve for x
x = 4,581,269,441.53/75,678.99 - Step 6: Final answer
x = 60,535.55
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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.