Finding the Fourth Proportional to 81,383.13, 112,315.79 and 45,572.49
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Solution
The fourth proportional to 81,383.13, 112,315.79 and 45,572.49 is: 62,893.99
Step by Step Solution
- Step 1: Write the proportion equation
81,383.13 : 112,315.79 = 45,572.49 : x - Step 2: Convert to fraction form
81,383.13/112,315.79 = 45,572.49/x - Step 3: Cross multiply
81,383.13x = 112,315.79 × 45,572.49 - Step 4: Simplify right side
81,383.13x = 5,118,509,988.75 - Step 5: Solve for x
x = 5,118,509,988.75/81,383.13 - Step 6: Final answer
x = 62,893.99
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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.