Finding the Fourth Proportional to 85,502.09, 128,266.92 and 26,337.71
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Solution
The fourth proportional to 85,502.09, 128,266.92 and 26,337.71 is: 39,510.80
Step by Step Solution
- Step 1: Write the proportion equation
85,502.09 : 128,266.92 = 26,337.71 : x - Step 2: Convert to fraction form
85,502.09/128,266.92 = 26,337.71/x - Step 3: Cross multiply
85,502.09x = 128,266.92 × 26,337.71 - Step 4: Simplify right side
85,502.09x = 3,378,256,300.22 - Step 5: Solve for x
x = 3,378,256,300.22/85,502.09 - Step 6: Final answer
x = 39,510.80
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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.