Finding the Fourth Proportional to 74,268.99, 102,531.03 and 57,360.75
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Solution
The fourth proportional to 74,268.99, 102,531.03 and 57,360.75 is: 79,188.59
Step by Step Solution
- Step 1: Write the proportion equation
74,268.99 : 102,531.03 = 57,360.75 : x - Step 2: Convert to fraction form
74,268.99/102,531.03 = 57,360.75/x - Step 3: Cross multiply
74,268.99x = 102,531.03 × 57,360.75 - Step 4: Simplify right side
74,268.99x = 5,881,256,779.07 - Step 5: Solve for x
x = 5,881,256,779.07/74,268.99 - Step 6: Final answer
x = 79,188.59
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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.