Finding the Fourth Proportional to 79,938.17, 110,314.93 and 44,128.09
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Solution
The fourth proportional to 79,938.17, 110,314.93 and 44,128.09 is: 60,896.91
Step by Step Solution
- Step 1: Write the proportion equation
79,938.17 : 110,314.93 = 44,128.09 : x - Step 2: Convert to fraction form
79,938.17/110,314.93 = 44,128.09/x - Step 3: Cross multiply
79,938.17x = 110,314.93 × 44,128.09 - Step 4: Simplify right side
79,938.17x = 4,867,987,159.38 - Step 5: Solve for x
x = 4,867,987,159.38/79,938.17 - Step 6: Final answer
x = 60,896.91
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1.5x scale
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.