Finding the Fourth Proportional to 97,469.91, 134,529.80 and 61,707.60
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Solution
The fourth proportional to 97,469.91, 134,529.80 and 61,707.60 is: 85,169.99
Step by Step Solution
- Step 1: Write the proportion equation
97,469.91 : 134,529.80 = 61,707.60 : x - Step 2: Convert to fraction form
97,469.91/134,529.80 = 61,707.60/x - Step 3: Cross multiply
97,469.91x = 134,529.80 × 61,707.60 - Step 4: Simplify right side
97,469.91x = 8,301,510,777.94 - Step 5: Solve for x
x = 8,301,510,777.94/97,469.91 - Step 6: Final answer
x = 85,169.99
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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.