Finding the Fourth Proportional to 75,686.36, 104,459.47 and 43,873.70
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Solution
The fourth proportional to 75,686.36, 104,459.47 and 43,873.70 is: 60,552.83
Step by Step Solution
- Step 1: Write the proportion equation
75,686.36 : 104,459.47 = 43,873.70 : x - Step 2: Convert to fraction form
75,686.36/104,459.47 = 43,873.70/x - Step 3: Cross multiply
75,686.36x = 104,459.47 × 43,873.70 - Step 4: Simplify right side
75,686.36x = 4,583,022,816.96 - Step 5: Solve for x
x = 4,583,022,816.96/75,686.36 - Step 6: Final answer
x = 60,552.83
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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.