Finding the Fourth Proportional to 73,220.70, 101,045.10 and 39,686.70
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Solution
The fourth proportional to 73,220.70, 101,045.10 and 39,686.70 is: 54,767.94
Step by Step Solution
- Step 1: Write the proportion equation
73,220.70 : 101,045.10 = 39,686.70 : x - Step 2: Convert to fraction form
73,220.70/101,045.10 = 39,686.70/x - Step 3: Cross multiply
73,220.70x = 101,045.10 × 39,686.70 - Step 4: Simplify right side
73,220.70x = 4,010,146,570.17 - Step 5: Solve for x
x = 4,010,146,570.17/73,220.70 - Step 6: Final answer
x = 54,767.94
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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.