Finding the Fourth Proportional to 83,482.79, 115,218.06 and 51,661.94
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Solution
The fourth proportional to 83,482.79, 115,218.06 and 51,661.94 is: 71,300.79
Step by Step Solution
- Step 1: Write the proportion equation
83,482.79 : 115,218.06 = 51,661.94 : x - Step 2: Convert to fraction form
83,482.79/115,218.06 = 51,661.94/x - Step 3: Cross multiply
83,482.79x = 115,218.06 × 51,661.94 - Step 4: Simplify right side
83,482.79x = 5,952,388,502.64 - Step 5: Solve for x
x = 5,952,388,502.64/83,482.79 - Step 6: Final answer
x = 71,300.79
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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.