Finding the Fourth Proportional to 75,472.18, 104,149.42 and 43,205.71
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Solution
The fourth proportional to 75,472.18, 104,149.42 and 43,205.71 is: 59,622.63
Step by Step Solution
- Step 1: Write the proportion equation
75,472.18 : 104,149.42 = 43,205.71 : x - Step 2: Convert to fraction form
75,472.18/104,149.42 = 43,205.71/x - Step 3: Cross multiply
75,472.18x = 104,149.42 × 43,205.71 - Step 4: Simplify right side
75,472.18x = 4,499,849,637.19 - Step 5: Solve for x
x = 4,499,849,637.19/75,472.18 - Step 6: Final answer
x = 59,622.63
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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.