Finding the Fourth Proportional to 76,593.09, 105,698.47 and 43,059.09
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Solution
The fourth proportional to 76,593.09, 105,698.47 and 43,059.09 is: 59,421.55
Step by Step Solution
- Step 1: Write the proportion equation
76,593.09 : 105,698.47 = 43,059.09 : x - Step 2: Convert to fraction form
76,593.09/105,698.47 = 43,059.09/x - Step 3: Cross multiply
76,593.09x = 105,698.47 × 43,059.09 - Step 4: Simplify right side
76,593.09x = 4,551,280,302.05 - Step 5: Solve for x
x = 4,551,280,302.05/76,593.09 - Step 6: Final answer
x = 59,421.55
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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.