Finding the Fourth Proportional to 75,149.98, 103,705.11 and 41,158.53
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Solution
The fourth proportional to 75,149.98, 103,705.11 and 41,158.53 is: 56,797.75
Step by Step Solution
- Step 1: Write the proportion equation
75,149.98 : 103,705.11 = 41,158.53 : x - Step 2: Convert to fraction form
75,149.98/103,705.11 = 41,158.53/x - Step 3: Cross multiply
75,149.98x = 103,705.11 × 41,158.53 - Step 4: Simplify right side
75,149.98x = 4,268,349,881.09 - Step 5: Solve for x
x = 4,268,349,881.09/75,149.98 - Step 6: Final answer
x = 56,797.75
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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.