Finding the Fourth Proportional to 112,955.84, 169,428.62 and 49,759.05
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Solution
The fourth proportional to 112,955.84, 169,428.62 and 49,759.05 is: 74,636.31
Step by Step Solution
- Step 1: Write the proportion equation
112,955.84 : 169,428.62 = 49,759.05 : x - Step 2: Convert to fraction form
112,955.84/169,428.62 = 49,759.05/x - Step 3: Cross multiply
112,955.84x = 169,428.62 × 49,759.05 - Step 4: Simplify right side
112,955.84x = 8,430,606,925.22 - Step 5: Solve for x
x = 8,430,606,925.22/112,955.84 - Step 6: Final answer
x = 74,636.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.