Finding the Fourth Proportional to 91,661.10, 126,497.28 and 51,387.84
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Solution
The fourth proportional to 91,661.10, 126,497.28 and 51,387.84 is: 70,918.00
Step by Step Solution
- Step 1: Write the proportion equation
91,661.10 : 126,497.28 = 51,387.84 : x - Step 2: Convert to fraction form
91,661.10/126,497.28 = 51,387.84/x - Step 3: Cross multiply
91,661.10x = 126,497.28 × 51,387.84 - Step 4: Simplify right side
91,661.10x = 6,500,421,985.08 - Step 5: Solve for x
x = 6,500,421,985.08/91,661.10 - Step 6: Final answer
x = 70,918.00
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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.