Finding the Fourth Proportional to 75,139.66, 103,685.55 and 44,918.98
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Solution
The fourth proportional to 75,139.66, 103,685.55 and 44,918.98 is: 61,983.90
Step by Step Solution
- Step 1: Write the proportion equation
75,139.66 : 103,685.55 = 44,918.98 : x - Step 2: Convert to fraction form
75,139.66/103,685.55 = 44,918.98/x - Step 3: Cross multiply
75,139.66x = 103,685.55 × 44,918.98 - Step 4: Simplify right side
75,139.66x = 4,657,449,146.74 - Step 5: Solve for x
x = 4,657,449,146.74/75,139.66 - Step 6: Final answer
x = 61,983.90
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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.