Finding the Fourth Proportional to 83,627.88, 115,368.84 and 49,637.80
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Solution
The fourth proportional to 83,627.88, 115,368.84 and 49,637.80 is: 68,477.83
Step by Step Solution
- Step 1: Write the proportion equation
83,627.88 : 115,368.84 = 49,637.80 : x - Step 2: Convert to fraction form
83,627.88/115,368.84 = 49,637.80/x - Step 3: Cross multiply
83,627.88x = 115,368.84 × 49,637.80 - Step 4: Simplify right side
83,627.88x = 5,726,655,406.15 - Step 5: Solve for x
x = 5,726,655,406.15/83,627.88 - Step 6: Final answer
x = 68,477.83
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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.