Finding the Fourth Proportional to 89,952.36, 124,139.88 and 51,724.08
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Solution
The fourth proportional to 89,952.36, 124,139.88 and 51,724.08 is: 71,382.46
Step by Step Solution
- Step 1: Write the proportion equation
89,952.36 : 124,139.88 = 51,724.08 : x - Step 2: Convert to fraction form
89,952.36/124,139.88 = 51,724.08/x - Step 3: Cross multiply
89,952.36x = 124,139.88 × 51,724.08 - Step 4: Simplify right side
89,952.36x = 6,421,021,084.31 - Step 5: Solve for x
x = 6,421,021,084.31/89,952.36 - Step 6: Final answer
x = 71,382.46
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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.