Finding the Fourth Proportional to 76,252.99, 105,229.40 and 42,262.05
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Solution
The fourth proportional to 76,252.99, 105,229.40 and 42,262.05 is: 58,321.78
Step by Step Solution
- Step 1: Write the proportion equation
76,252.99 : 105,229.40 = 42,262.05 : x - Step 2: Convert to fraction form
76,252.99/105,229.40 = 42,262.05/x - Step 3: Cross multiply
76,252.99x = 105,229.40 × 42,262.05 - Step 4: Simplify right side
76,252.99x = 4,447,210,164.27 - Step 5: Solve for x
x = 4,447,210,164.27/76,252.99 - Step 6: Final answer
x = 58,321.78
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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.