Finding the Fourth Proportional to 85,570.37, 128,372.66 and 26,403.81
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Solution
The fourth proportional to 85,570.37, 128,372.66 and 26,403.81 is: 39,610.99
Step by Step Solution
- Step 1: Write the proportion equation
85,570.37 : 128,372.66 = 26,403.81 : x - Step 2: Convert to fraction form
85,570.37/128,372.66 = 26,403.81/x - Step 3: Cross multiply
85,570.37x = 128,372.66 × 26,403.81 - Step 4: Simplify right side
85,570.37x = 3,389,527,323.83 - Step 5: Solve for x
x = 3,389,527,323.83/85,570.37 - Step 6: Final answer
x = 39,610.99
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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.