Finding the Fourth Proportional to 66,828.93, 100,177.79 and 43,132.79
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Solution
The fourth proportional to 66,828.93, 100,177.79 and 43,132.79 is: 64,656.83
Step by Step Solution
- Step 1: Write the proportion equation
66,828.93 : 100,177.79 = 43,132.79 : x - Step 2: Convert to fraction form
66,828.93/100,177.79 = 43,132.79/x - Step 3: Cross multiply
66,828.93x = 100,177.79 × 43,132.79 - Step 4: Simplify right side
66,828.93x = 4,320,946,862.18 - Step 5: Solve for x
x = 4,320,946,862.18/66,828.93 - Step 6: Final answer
x = 64,656.83
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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.