Finding the Fourth Proportional to 76,990.71, 115,468.64 and 24,371.49
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Solution
The fourth proportional to 76,990.71, 115,468.64 and 24,371.49 is: 36,551.71
Step by Step Solution
- Step 1: Write the proportion equation
76,990.71 : 115,468.64 = 24,371.49 : x - Step 2: Convert to fraction form
76,990.71/115,468.64 = 24,371.49/x - Step 3: Cross multiply
76,990.71x = 115,468.64 × 24,371.49 - Step 4: Simplify right side
76,990.71x = 2,814,142,288.66 - Step 5: Solve for x
x = 2,814,142,288.66/76,990.71 - Step 6: Final answer
x = 36,551.71
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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.