Finding the Fourth Proportional to 75,991.62, 104,866.29 and 42,457.62
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Solution
The fourth proportional to 75,991.62, 104,866.29 and 42,457.62 is: 58,590.32
Step by Step Solution
- Step 1: Write the proportion equation
75,991.62 : 104,866.29 = 42,457.62 : x - Step 2: Convert to fraction form
75,991.62/104,866.29 = 42,457.62/x - Step 3: Cross multiply
75,991.62x = 104,866.29 × 42,457.62 - Step 4: Simplify right side
75,991.62x = 4,452,373,091.63 - Step 5: Solve for x
x = 4,452,373,091.63/75,991.62 - Step 6: Final answer
x = 58,590.32
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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.