Finding the Fourth Proportional to 97,845.48, 135,028.58 and 55,403.88
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Solution
The fourth proportional to 97,845.48, 135,028.58 and 55,403.88 is: 76,458.38
Step by Step Solution
- Step 1: Write the proportion equation
97,845.48 : 135,028.58 = 55,403.88 : x - Step 2: Convert to fraction form
97,845.48/135,028.58 = 55,403.88/x - Step 3: Cross multiply
97,845.48x = 135,028.58 × 55,403.88 - Step 4: Simplify right side
97,845.48x = 7,481,107,242.89 - Step 5: Solve for x
x = 7,481,107,242.89/97,845.48 - Step 6: Final answer
x = 76,458.38
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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.