Finding the Fourth Proportional to 90,167.58, 124,428.56 and 49,878.99
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Solution
The fourth proportional to 90,167.58, 124,428.56 and 49,878.99 is: 68,831.51
Step by Step Solution
- Step 1: Write the proportion equation
90,167.58 : 124,428.56 = 49,878.99 : x - Step 2: Convert to fraction form
90,167.58/124,428.56 = 49,878.99/x - Step 3: Cross multiply
90,167.58x = 124,428.56 × 49,878.99 - Step 4: Simplify right side
90,167.58x = 6,206,370,650.56 - Step 5: Solve for x
x = 6,206,370,650.56/90,167.58 - Step 6: Final answer
x = 68,831.51
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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.