Finding the Fourth Proportional to 75,151.23, 103,706.14 and 42,887.63
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Solution
The fourth proportional to 75,151.23, 103,706.14 and 42,887.63 is: 59,183.47
Step by Step Solution
- Step 1: Write the proportion equation
75,151.23 : 103,706.14 = 42,887.63 : x - Step 2: Convert to fraction form
75,151.23/103,706.14 = 42,887.63/x - Step 3: Cross multiply
75,151.23x = 103,706.14 × 42,887.63 - Step 4: Simplify right side
75,151.23x = 4,447,710,561.05 - Step 5: Solve for x
x = 4,447,710,561.05/75,151.23 - Step 6: Final answer
x = 59,183.47
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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.