Finding the Fourth Proportional to 76,620.09, 105,750.29 and 47,953.08
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Solution
The fourth proportional to 76,620.09, 105,750.29 and 47,953.08 is: 66,184.36
Step by Step Solution
- Step 1: Write the proportion equation
76,620.09 : 105,750.29 = 47,953.08 : x - Step 2: Convert to fraction form
76,620.09/105,750.29 = 47,953.08/x - Step 3: Cross multiply
76,620.09x = 105,750.29 × 47,953.08 - Step 4: Simplify right side
76,620.09x = 5,071,051,876.63 - Step 5: Solve for x
x = 5,071,051,876.63/76,620.09 - Step 6: Final answer
x = 66,184.36
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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.