Finding the Fourth Proportional to 75,395.30, 112,920.68 and 35,980.09
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Solution
The fourth proportional to 75,395.30, 112,920.68 and 35,980.09 is: 53,887.92
Step by Step Solution
- Step 1: Write the proportion equation
75,395.30 : 112,920.68 = 35,980.09 : x - Step 2: Convert to fraction form
75,395.30/112,920.68 = 35,980.09/x - Step 3: Cross multiply
75,395.30x = 112,920.68 × 35,980.09 - Step 4: Simplify right side
75,395.30x = 4,062,896,229.26 - Step 5: Solve for x
x = 4,062,896,229.26/75,395.30 - Step 6: Final answer
x = 53,887.92
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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.