Finding the Fourth Proportional to 75,866.74, 113,805.57 and 29,119.62
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Solution
The fourth proportional to 75,866.74, 113,805.57 and 29,119.62 is: 43,681.52
Step by Step Solution
- Step 1: Write the proportion equation
75,866.74 : 113,805.57 = 29,119.62 : x - Step 2: Convert to fraction form
75,866.74/113,805.57 = 29,119.62/x - Step 3: Cross multiply
75,866.74x = 113,805.57 × 29,119.62 - Step 4: Simplify right side
75,866.74x = 3,313,974,310.46 - Step 5: Solve for x
x = 3,313,974,310.46/75,866.74 - Step 6: Final answer
x = 43,681.52
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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.