Finding the Fourth Proportional to 76,870.94, 115,341.98 and 29,470.19
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Solution
The fourth proportional to 76,870.94, 115,341.98 and 29,470.19 is: 44,218.92
Step by Step Solution
- Step 1: Write the proportion equation
76,870.94 : 115,341.98 = 29,470.19 : x - Step 2: Convert to fraction form
76,870.94/115,341.98 = 29,470.19/x - Step 3: Cross multiply
76,870.94x = 115,341.98 × 29,470.19 - Step 4: Simplify right side
76,870.94x = 3,399,149,341.52 - Step 5: Solve for x
x = 3,399,149,341.52/76,870.94 - Step 6: Final answer
x = 44,218.92
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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.