Finding the Fourth Proportional to 76,599.87, 105,710.83 and 46,368.09
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Solution
The fourth proportional to 76,599.87, 105,710.83 and 46,368.09 is: 63,989.78
Step by Step Solution
- Step 1: Write the proportion equation
76,599.87 : 105,710.83 = 46,368.09 : x - Step 2: Convert to fraction form
76,599.87/105,710.83 = 46,368.09/x - Step 3: Cross multiply
76,599.87x = 105,710.83 × 46,368.09 - Step 4: Simplify right side
76,599.87x = 4,901,609,293.90 - Step 5: Solve for x
x = 4,901,609,293.90/76,599.87 - Step 6: Final answer
x = 63,989.78
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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.