Finding the Fourth Proportional to 74,603.99, 111,865.09 and 29,579.74
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Solution
The fourth proportional to 74,603.99, 111,865.09 and 29,579.74 is: 44,353.39
Step by Step Solution
- Step 1: Write the proportion equation
74,603.99 : 111,865.09 = 29,579.74 : x - Step 2: Convert to fraction form
74,603.99/111,865.09 = 29,579.74/x - Step 3: Cross multiply
74,603.99x = 111,865.09 × 29,579.74 - Step 4: Simplify right side
74,603.99x = 3,308,939,570.05 - Step 5: Solve for x
x = 3,308,939,570.05/74,603.99 - Step 6: Final answer
x = 44,353.39
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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.