Finding the Fourth Proportional to 98,084.16, 135,366.12 and 57,810.87
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Solution
The fourth proportional to 98,084.16, 135,366.12 and 57,810.87 is: 79,784.88
Step by Step Solution
- Step 1: Write the proportion equation
98,084.16 : 135,366.12 = 57,810.87 : x - Step 2: Convert to fraction form
98,084.16/135,366.12 = 57,810.87/x - Step 3: Cross multiply
98,084.16x = 135,366.12 × 57,810.87 - Step 4: Simplify right side
98,084.16x = 7,825,633,165.72 - Step 5: Solve for x
x = 7,825,633,165.72/98,084.16 - Step 6: Final answer
x = 79,784.88
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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.