Finding the Fourth Proportional to 77,652.92, 107,153.63 and 45,395.09
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Solution
The fourth proportional to 77,652.92, 107,153.63 and 45,395.09 is: 62,640.89
Step by Step Solution
- Step 1: Write the proportion equation
77,652.92 : 107,153.63 = 45,395.09 : x - Step 2: Convert to fraction form
77,652.92/107,153.63 = 45,395.09/x - Step 3: Cross multiply
77,652.92x = 107,153.63 × 45,395.09 - Step 4: Simplify right side
77,652.92x = 4,864,247,914.93 - Step 5: Solve for x
x = 4,864,247,914.93/77,652.92 - Step 6: Final answer
x = 62,640.89
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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.