Finding the Fourth Proportional to 75,774.36, 104,512.02 and 55,624.80
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Solution
The fourth proportional to 75,774.36, 104,512.02 and 55,624.80 is: 76,720.68
Step by Step Solution
- Step 1: Write the proportion equation
75,774.36 : 104,512.02 = 55,624.80 : x - Step 2: Convert to fraction form
75,774.36/104,512.02 = 55,624.80/x - Step 3: Cross multiply
75,774.36x = 104,512.02 × 55,624.80 - Step 4: Simplify right side
75,774.36x = 5,813,460,210.10 - Step 5: Solve for x
x = 5,813,460,210.10/75,774.36 - Step 6: Final answer
x = 76,720.68
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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.