Finding the Fourth Proportional to 90,257.19, 124,553.43 and 49,970.09
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Solution
The fourth proportional to 90,257.19, 124,553.43 and 49,970.09 is: 68,957.89
Step by Step Solution
- Step 1: Write the proportion equation
90,257.19 : 124,553.43 = 49,970.09 : x - Step 2: Convert to fraction form
90,257.19/124,553.43 = 49,970.09/x - Step 3: Cross multiply
90,257.19x = 124,553.43 × 49,970.09 - Step 4: Simplify right side
90,257.19x = 6,223,945,484.14 - Step 5: Solve for x
x = 6,223,945,484.14/90,257.19 - Step 6: Final answer
x = 68,957.89
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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.