Finding the Fourth Proportional to 84,052.80, 115,998.24 and 46,331.20
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Solution
The fourth proportional to 84,052.80, 115,998.24 and 46,331.20 is: 63,940.02
Step by Step Solution
- Step 1: Write the proportion equation
84,052.80 : 115,998.24 = 46,331.20 : x - Step 2: Convert to fraction form
84,052.80/115,998.24 = 46,331.20/x - Step 3: Cross multiply
84,052.80x = 115,998.24 × 46,331.20 - Step 4: Simplify right side
84,052.80x = 5,374,337,657.09 - Step 5: Solve for x
x = 5,374,337,657.09/84,052.80 - Step 6: Final answer
x = 63,940.02
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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.