Finding the Fourth Proportional to 88,212.66, 121,663.05 and 58,029.06
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Solution
The fourth proportional to 88,212.66, 121,663.05 and 58,029.06 is: 80,033.78
Step by Step Solution
- Step 1: Write the proportion equation
88,212.66 : 121,663.05 = 58,029.06 : x - Step 2: Convert to fraction form
88,212.66/121,663.05 = 58,029.06/x - Step 3: Cross multiply
88,212.66x = 121,663.05 × 58,029.06 - Step 4: Simplify right side
88,212.66x = 7,059,992,428.23 - Step 5: Solve for x
x = 7,059,992,428.23/88,212.66 - Step 6: Final answer
x = 80,033.78
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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.