Finding the Fourth Proportional to 75,132.48, 103,637.76 and 49,639.68
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Solution
The fourth proportional to 75,132.48, 103,637.76 and 49,639.68 is: 68,472.99
Step by Step Solution
- Step 1: Write the proportion equation
75,132.48 : 103,637.76 = 49,639.68 : x - Step 2: Convert to fraction form
75,132.48/103,637.76 = 49,639.68/x - Step 3: Cross multiply
75,132.48x = 103,637.76 × 49,639.68 - Step 4: Simplify right side
75,132.48x = 5,144,545,242.32 - Step 5: Solve for x
x = 5,144,545,242.32/75,132.48 - Step 6: Final answer
x = 68,472.99
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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.